Home / 39,348.19-54,300.51-21,443.20

Finding the Fourth Proportional to 39,348.19, 54,300.51 and 21,443.20

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Solution

The fourth proportional to 39,348.19, 54,300.51 and 21,443.20 is: 29,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.19 : 54,300.51 = 21,443.20 : x
  2. Step 2: Convert to fraction form
    39,348.19/54,300.51 = 21,443.20/x
  3. Step 3: Cross multiply
    39,348.19x = 54,300.51 × 21,443.20
  4. Step 4: Simplify right side
    39,348.19x = 1,164,376,696.03
  5. Step 5: Solve for x
    x = 1,164,376,696.03/39,348.19
  6. Step 6: Final answer
    x = 29,591.62

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Half scale
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Double scale
Find fourth proportional to 39,349.19, 54,301.89 and 21,444.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.