Home / 31,455.12-47,159.77-14,805.90

Finding the Fourth Proportional to 31,455.12, 47,159.77 and 14,805.90

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Solution

The fourth proportional to 31,455.12, 47,159.77 and 14,805.90 is: 22,198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.12 : 47,159.77 = 14,805.90 : x
  2. Step 2: Convert to fraction form
    31,455.12/47,159.77 = 14,805.90/x
  3. Step 3: Cross multiply
    31,455.12x = 47,159.77 × 14,805.90
  4. Step 4: Simplify right side
    31,455.12x = 698,242,838.64
  5. Step 5: Solve for x
    x = 698,242,838.64/31,455.12
  6. Step 6: Final answer
    x = 22,198.07

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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.