Home / 39,677.67-54,758.58-21,776.13

Finding the Fourth Proportional to 39,677.67, 54,758.58 and 21,776.13

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Solution

The fourth proportional to 39,677.67, 54,758.58 and 21,776.13 is: 30,052.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,677.67 : 54,758.58 = 21,776.13 : x
  2. Step 2: Convert to fraction form
    39,677.67/54,758.58 = 21,776.13/x
  3. Step 3: Cross multiply
    39,677.67x = 54,758.58 × 21,776.13
  4. Step 4: Simplify right side
    39,677.67x = 1,192,429,956.70
  5. Step 5: Solve for x
    x = 1,192,429,956.70/39,677.67
  6. Step 6: Final answer
    x = 30,052.92

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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.