Home / 20,416.59-28,176.29-11,343.02

Finding the Fourth Proportional to 20,416.59, 28,176.29 and 11,343.02

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Solution

The fourth proportional to 20,416.59, 28,176.29 and 11,343.02 is: 15,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.59 : 28,176.29 = 11,343.02 : x
  2. Step 2: Convert to fraction form
    20,416.59/28,176.29 = 11,343.02/x
  3. Step 3: Cross multiply
    20,416.59x = 28,176.29 × 11,343.02
  4. Step 4: Simplify right side
    20,416.59x = 319,604,023.40
  5. Step 5: Solve for x
    x = 319,604,023.40/20,416.59
  6. Step 6: Final answer
    x = 15,654.13

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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.