Home / 21,590.61-32,385.91-12,350.13

Finding the Fourth Proportional to 21,590.61, 32,385.91 and 12,350.13

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Solution

The fourth proportional to 21,590.61, 32,385.91 and 12,350.13 is: 18,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.61 : 32,385.91 = 12,350.13 : x
  2. Step 2: Convert to fraction form
    21,590.61/32,385.91 = 12,350.13/x
  3. Step 3: Cross multiply
    21,590.61x = 32,385.91 × 12,350.13
  4. Step 4: Simplify right side
    21,590.61x = 399,970,198.67
  5. Step 5: Solve for x
    x = 399,970,198.67/21,590.61
  6. Step 6: Final answer
    x = 18,525.19

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1.5x scale

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.