Home / 21,331.56-29,435.22-15,033

Finding the Fourth Proportional to 21,331.56, 29,435.22 and 15,033

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Solution

The fourth proportional to 21,331.56, 29,435.22 and 15,033 is: 20,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.56 : 29,435.22 = 15,033 : x
  2. Step 2: Convert to fraction form
    21,331.56/29,435.22 = 15,033/x
  3. Step 3: Cross multiply
    21,331.56x = 29,435.22 × 15,033
  4. Step 4: Simplify right side
    21,331.56x = 442,499,662.26
  5. Step 5: Solve for x
    x = 442,499,662.26/21,331.56
  6. Step 6: Final answer
    x = 20,743.90

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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.