Home / 26,385-39,581.28-9,742.20

Finding the Fourth Proportional to 26,385, 39,581.28 and 9,742.20

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Solution

The fourth proportional to 26,385, 39,581.28 and 9,742.20 is: 14,614.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385 : 39,581.28 = 9,742.20 : x
  2. Step 2: Convert to fraction form
    26,385/39,581.28 = 9,742.20/x
  3. Step 3: Cross multiply
    26,385x = 39,581.28 × 9,742.20
  4. Step 4: Simplify right side
    26,385x = 385,608,746.02
  5. Step 5: Solve for x
    x = 385,608,746.02/26,385
  6. Step 6: Final answer
    x = 14,614.70

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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.