Home / 42,476.16-63,715.68-11,311.44

Finding the Fourth Proportional to 42,476.16, 63,715.68 and 11,311.44

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Solution

The fourth proportional to 42,476.16, 63,715.68 and 11,311.44 is: 16,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,476.16 : 63,715.68 = 11,311.44 : x
  2. Step 2: Convert to fraction form
    42,476.16/63,715.68 = 11,311.44/x
  3. Step 3: Cross multiply
    42,476.16x = 63,715.68 × 11,311.44
  4. Step 4: Simplify right side
    42,476.16x = 720,716,091.38
  5. Step 5: Solve for x
    x = 720,716,091.38/42,476.16
  6. Step 6: Final answer
    x = 16,967.54

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1.5x scale

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.