Home / 39,037.71-53,871.68-21,132.26

Finding the Fourth Proportional to 39,037.71, 53,871.68 and 21,132.26

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Solution

The fourth proportional to 39,037.71, 53,871.68 and 21,132.26 is: 29,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.71 : 53,871.68 = 21,132.26 : x
  2. Step 2: Convert to fraction form
    39,037.71/53,871.68 = 21,132.26/x
  3. Step 3: Cross multiply
    39,037.71x = 53,871.68 × 21,132.26
  4. Step 4: Simplify right side
    39,037.71x = 1,138,429,973.38
  5. Step 5: Solve for x
    x = 1,138,429,973.38/39,037.71
  6. Step 6: Final answer
    x = 29,162.31

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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.