Home / 42,279.90-63,425.67-14,207.98

Finding the Fourth Proportional to 42,279.90, 63,425.67 and 14,207.98

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Solution

The fourth proportional to 42,279.90, 63,425.67 and 14,207.98 is: 21,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.90 : 63,425.67 = 14,207.98 : x
  2. Step 2: Convert to fraction form
    42,279.90/63,425.67 = 14,207.98/x
  3. Step 3: Cross multiply
    42,279.90x = 63,425.67 × 14,207.98
  4. Step 4: Simplify right side
    42,279.90x = 901,150,796.25
  5. Step 5: Solve for x
    x = 901,150,796.25/42,279.90
  6. Step 6: Final answer
    x = 21,313.93

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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.