Home / 42,400.53-63,601.16-11,235.78

Finding the Fourth Proportional to 42,400.53, 63,601.16 and 11,235.78

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Solution

The fourth proportional to 42,400.53, 63,601.16 and 11,235.78 is: 16,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.53 : 63,601.16 = 11,235.78 : x
  2. Step 2: Convert to fraction form
    42,400.53/63,601.16 = 11,235.78/x
  3. Step 3: Cross multiply
    42,400.53x = 63,601.16 × 11,235.78
  4. Step 4: Simplify right side
    42,400.53x = 714,608,585.33
  5. Step 5: Solve for x
    x = 714,608,585.33/42,400.53
  6. Step 6: Final answer
    x = 16,853.77

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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.