Home / 31,590.18-47,385.14-12,866.04

Finding the Fourth Proportional to 31,590.18, 47,385.14 and 12,866.04

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Solution

The fourth proportional to 31,590.18, 47,385.14 and 12,866.04 is: 19,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.18 : 47,385.14 = 12,866.04 : x
  2. Step 2: Convert to fraction form
    31,590.18/47,385.14 = 12,866.04/x
  3. Step 3: Cross multiply
    31,590.18x = 47,385.14 × 12,866.04
  4. Step 4: Simplify right side
    31,590.18x = 609,659,042.32
  5. Step 5: Solve for x
    x = 609,659,042.32/31,590.18
  6. Step 6: Final answer
    x = 19,299.01

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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.