Home / 31,267.88-46,897.86-8,780.60

Finding the Fourth Proportional to 31,267.88, 46,897.86 and 8,780.60

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Solution

The fourth proportional to 31,267.88, 46,897.86 and 8,780.60 is: 13,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.88 : 46,897.86 = 8,780.60 : x
  2. Step 2: Convert to fraction form
    31,267.88/46,897.86 = 8,780.60/x
  3. Step 3: Cross multiply
    31,267.88x = 46,897.86 × 8,780.60
  4. Step 4: Simplify right side
    31,267.88x = 411,791,349.52
  5. Step 5: Solve for x
    x = 411,791,349.52/31,267.88
  6. Step 6: Final answer
    x = 13,169.79

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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.