Home / 39,443.29-54,429.71-21,534.84

Finding the Fourth Proportional to 39,443.29, 54,429.71 and 21,534.84

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Solution

The fourth proportional to 39,443.29, 54,429.71 and 21,534.84 is: 29,716.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.29 : 54,429.71 = 21,534.84 : x
  2. Step 2: Convert to fraction form
    39,443.29/54,429.71 = 21,534.84/x
  3. Step 3: Cross multiply
    39,443.29x = 54,429.71 × 21,534.84
  4. Step 4: Simplify right side
    39,443.29x = 1,172,134,988.42
  5. Step 5: Solve for x
    x = 1,172,134,988.42/39,443.29
  6. Step 6: Final answer
    x = 29,716.97

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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.