Home / 39,292.05-54,224.46-21,386.19

Finding the Fourth Proportional to 39,292.05, 54,224.46 and 21,386.19

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Solution

The fourth proportional to 39,292.05, 54,224.46 and 21,386.19 is: 29,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.05 : 54,224.46 = 21,386.19 : x
  2. Step 2: Convert to fraction form
    39,292.05/54,224.46 = 21,386.19/x
  3. Step 3: Cross multiply
    39,292.05x = 54,224.46 × 21,386.19
  4. Step 4: Simplify right side
    39,292.05x = 1,159,654,604.21
  5. Step 5: Solve for x
    x = 1,159,654,604.21/39,292.05
  6. Step 6: Final answer
    x = 29,513.72

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Half scale
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Double scale
Find fourth proportional to 39,293.05, 54,225.84 and 21,387.19
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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.