Home / 42,400.10-63,600.15-12,814.85

Finding the Fourth Proportional to 42,400.10, 63,600.15 and 12,814.85

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Solution

The fourth proportional to 42,400.10, 63,600.15 and 12,814.85 is: 19,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.10 : 63,600.15 = 12,814.85 : x
  2. Step 2: Convert to fraction form
    42,400.10/63,600.15 = 12,814.85/x
  3. Step 3: Cross multiply
    42,400.10x = 63,600.15 × 12,814.85
  4. Step 4: Simplify right side
    42,400.10x = 815,026,382.23
  5. Step 5: Solve for x
    x = 815,026,382.23/42,400.10
  6. Step 6: Final answer
    x = 19,222.28

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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.