Home / 20,597.31-28,423.17-11,644.29

Finding the Fourth Proportional to 20,597.31, 28,423.17 and 11,644.29

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Solution

The fourth proportional to 20,597.31, 28,423.17 and 11,644.29 is: 16,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.31 : 28,423.17 = 11,644.29 : x
  2. Step 2: Convert to fraction form
    20,597.31/28,423.17 = 11,644.29/x
  3. Step 3: Cross multiply
    20,597.31x = 28,423.17 × 11,644.29
  4. Step 4: Simplify right side
    20,597.31x = 330,967,634.20
  5. Step 5: Solve for x
    x = 330,967,634.20/20,597.31
  6. Step 6: Final answer
    x = 16,068.49

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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.