Home / 39,037.43-53,871.59-21,132.43

Finding the Fourth Proportional to 39,037.43, 53,871.59 and 21,132.43

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Solution

The fourth proportional to 39,037.43, 53,871.59 and 21,132.43 is: 29,162.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.43 : 53,871.59 = 21,132.43 : x
  2. Step 2: Convert to fraction form
    39,037.43/53,871.59 = 21,132.43/x
  3. Step 3: Cross multiply
    39,037.43x = 53,871.59 × 21,132.43
  4. Step 4: Simplify right side
    39,037.43x = 1,138,437,604.66
  5. Step 5: Solve for x
    x = 1,138,437,604.66/39,037.43
  6. Step 6: Final answer
    x = 29,162.72

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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.