Home / 31,590.90-47,366.10-14,929.20

Finding the Fourth Proportional to 31,590.90, 47,366.10 and 14,929.20

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Solution

The fourth proportional to 31,590.90, 47,366.10 and 14,929.20 is: 22,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590.90 : 47,366.10 = 14,929.20 : x
  2. Step 2: Convert to fraction form
    31,590.90/47,366.10 = 14,929.20/x
  3. Step 3: Cross multiply
    31,590.90x = 47,366.10 × 14,929.20
  4. Step 4: Simplify right side
    31,590.90x = 707,137,980.12
  5. Step 5: Solve for x
    x = 707,137,980.12/31,590.90
  6. Step 6: Final answer
    x = 22,384.23

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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.