Home / 42,319.98-63,467.19-12,729.96

Finding the Fourth Proportional to 42,319.98, 63,467.19 and 12,729.96

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Solution

The fourth proportional to 42,319.98, 63,467.19 and 12,729.96 is: 19,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,319.98 : 63,467.19 = 12,729.96 : x
  2. Step 2: Convert to fraction form
    42,319.98/63,467.19 = 12,729.96/x
  3. Step 3: Cross multiply
    42,319.98x = 63,467.19 × 12,729.96
  4. Step 4: Simplify right side
    42,319.98x = 807,934,790.01
  5. Step 5: Solve for x
    x = 807,934,790.01/42,319.98
  6. Step 6: Final answer
    x = 19,091.10

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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.