Home / 20,543.13-28,349.50-11,590.60

Finding the Fourth Proportional to 20,543.13, 28,349.50 and 11,590.60

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Solution

The fourth proportional to 20,543.13, 28,349.50 and 11,590.60 is: 15,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.13 : 28,349.50 = 11,590.60 : x
  2. Step 2: Convert to fraction form
    20,543.13/28,349.50 = 11,590.60/x
  3. Step 3: Cross multiply
    20,543.13x = 28,349.50 × 11,590.60
  4. Step 4: Simplify right side
    20,543.13x = 328,587,714.70
  5. Step 5: Solve for x
    x = 328,587,714.70/20,543.13
  6. Step 6: Final answer
    x = 15,995.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.