Home / 28,354.60-42,535.38-9,637.72

Finding the Fourth Proportional to 28,354.60, 42,535.38 and 9,637.72

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Solution

The fourth proportional to 28,354.60, 42,535.38 and 9,637.72 is: 14,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354.60 : 42,535.38 = 9,637.72 : x
  2. Step 2: Convert to fraction form
    28,354.60/42,535.38 = 9,637.72/x
  3. Step 3: Cross multiply
    28,354.60x = 42,535.38 × 9,637.72
  4. Step 4: Simplify right side
    28,354.60x = 409,944,082.53
  5. Step 5: Solve for x
    x = 409,944,082.53/28,354.60
  6. Step 6: Final answer
    x = 14,457.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.