Home / 42,453.72-63,680.51-11,288.97

Finding the Fourth Proportional to 42,453.72, 63,680.51 and 11,288.97

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Solution

The fourth proportional to 42,453.72, 63,680.51 and 11,288.97 is: 16,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,453.72 : 63,680.51 = 11,288.97 : x
  2. Step 2: Convert to fraction form
    42,453.72/63,680.51 = 11,288.97/x
  3. Step 3: Cross multiply
    42,453.72x = 63,680.51 × 11,288.97
  4. Step 4: Simplify right side
    42,453.72x = 718,887,395.20
  5. Step 5: Solve for x
    x = 718,887,395.20/42,453.72
  6. Step 6: Final answer
    x = 16,933.44

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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.