Home / 42,261.78-63,400.20-14,190.96

Finding the Fourth Proportional to 42,261.78, 63,400.20 and 14,190.96

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Solution

The fourth proportional to 42,261.78, 63,400.20 and 14,190.96 is: 21,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,261.78 : 63,400.20 = 14,190.96 : x
  2. Step 2: Convert to fraction form
    42,261.78/63,400.20 = 14,190.96/x
  3. Step 3: Cross multiply
    42,261.78x = 63,400.20 × 14,190.96
  4. Step 4: Simplify right side
    42,261.78x = 899,709,702.19
  5. Step 5: Solve for x
    x = 899,709,702.19/42,261.78
  6. Step 6: Final answer
    x = 21,288.97

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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.