Home / 39,350.19-54,303.27-21,445.20

Finding the Fourth Proportional to 39,350.19, 54,303.27 and 21,445.20

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Solution

The fourth proportional to 39,350.19, 54,303.27 and 21,445.20 is: 29,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,350.19 : 54,303.27 = 21,445.20 : x
  2. Step 2: Convert to fraction form
    39,350.19/54,303.27 = 21,445.20/x
  3. Step 3: Cross multiply
    39,350.19x = 54,303.27 × 21,445.20
  4. Step 4: Simplify right side
    39,350.19x = 1,164,544,485.80
  5. Step 5: Solve for x
    x = 1,164,544,485.80/39,350.19
  6. Step 6: Final answer
    x = 29,594.38

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Half scale
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Double scale
Find fourth proportional to 39,351.19, 54,304.65 and 21,446.20
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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.