Home / 20,034.30-27,657-13,331.10

Finding the Fourth Proportional to 20,034.30, 27,657 and 13,331.10

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Solution

The fourth proportional to 20,034.30, 27,657 and 13,331.10 is: 18,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.30 : 27,657 = 13,331.10 : x
  2. Step 2: Convert to fraction form
    20,034.30/27,657 = 13,331.10/x
  3. Step 3: Cross multiply
    20,034.30x = 27,657 × 13,331.10
  4. Step 4: Simplify right side
    20,034.30x = 368,698,232.70
  5. Step 5: Solve for x
    x = 368,698,232.70/20,034.30
  6. Step 6: Final answer
    x = 18,403.35

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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.