Home / 39,329.73-54,274.68-21,424.68

Finding the Fourth Proportional to 39,329.73, 54,274.68 and 21,424.68

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Solution

The fourth proportional to 39,329.73, 54,274.68 and 21,424.68 is: 29,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,329.73 : 54,274.68 = 21,424.68 : x
  2. Step 2: Convert to fraction form
    39,329.73/54,274.68 = 21,424.68/x
  3. Step 3: Cross multiply
    39,329.73x = 54,274.68 × 21,424.68
  4. Step 4: Simplify right side
    39,329.73x = 1,162,817,651.10
  5. Step 5: Solve for x
    x = 1,162,817,651.10/39,329.73
  6. Step 6: Final answer
    x = 29,565.87

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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.