Home / 20,484.72-28,306.08-17,685.36

Finding the Fourth Proportional to 20,484.72, 28,306.08 and 17,685.36

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Solution

The fourth proportional to 20,484.72, 28,306.08 and 17,685.36 is: 24,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.72 : 28,306.08 = 17,685.36 : x
  2. Step 2: Convert to fraction form
    20,484.72/28,306.08 = 17,685.36/x
  3. Step 3: Cross multiply
    20,484.72x = 28,306.08 × 17,685.36
  4. Step 4: Simplify right side
    20,484.72x = 500,603,214.99
  5. Step 5: Solve for x
    x = 500,603,214.99/20,484.72
  6. Step 6: Final answer
    x = 24,437.88

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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.