Home / 39,037.80-53,871.91-21,132.42

Finding the Fourth Proportional to 39,037.80, 53,871.91 and 21,132.42

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Solution

The fourth proportional to 39,037.80, 53,871.91 and 21,132.42 is: 29,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.80 : 53,871.91 = 21,132.42 : x
  2. Step 2: Convert to fraction form
    39,037.80/53,871.91 = 21,132.42/x
  3. Step 3: Cross multiply
    39,037.80x = 53,871.91 × 21,132.42
  4. Step 4: Simplify right side
    39,037.80x = 1,138,443,828.32
  5. Step 5: Solve for x
    x = 1,138,443,828.32/39,037.80
  6. Step 6: Final answer
    x = 29,162.60

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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.