Home / 39,365.60-54,324.54-21,460.23

Finding the Fourth Proportional to 39,365.60, 54,324.54 and 21,460.23

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Solution

The fourth proportional to 39,365.60, 54,324.54 and 21,460.23 is: 29,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,365.60 : 54,324.54 = 21,460.23 : x
  2. Step 2: Convert to fraction form
    39,365.60/54,324.54 = 21,460.23/x
  3. Step 3: Cross multiply
    39,365.60x = 54,324.54 × 21,460.23
  4. Step 4: Simplify right side
    39,365.60x = 1,165,817,123.04
  5. Step 5: Solve for x
    x = 1,165,817,123.04/39,365.60
  6. Step 6: Final answer
    x = 29,615.13

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Double scale
Find fourth proportional to 39,366.60, 54,325.92 and 21,461.23
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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.