Home / 21,590.11-32,385.16-12,349.63

Finding the Fourth Proportional to 21,590.11, 32,385.16 and 12,349.63

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Solution

The fourth proportional to 21,590.11, 32,385.16 and 12,349.63 is: 18,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.11 : 32,385.16 = 12,349.63 : x
  2. Step 2: Convert to fraction form
    21,590.11/32,385.16 = 12,349.63/x
  3. Step 3: Cross multiply
    21,590.11x = 32,385.16 × 12,349.63
  4. Step 4: Simplify right side
    21,590.11x = 399,944,581.57
  5. Step 5: Solve for x
    x = 399,944,581.57/21,590.11
  6. Step 6: Final answer
    x = 18,524.44

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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.