Home / 18,351.30-25,337.43-13,572.30

Finding the Fourth Proportional to 18,351.30, 25,337.43 and 13,572.30

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Solution

The fourth proportional to 18,351.30, 25,337.43 and 13,572.30 is: 18,739.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.30 : 25,337.43 = 13,572.30 : x
  2. Step 2: Convert to fraction form
    18,351.30/25,337.43 = 13,572.30/x
  3. Step 3: Cross multiply
    18,351.30x = 25,337.43 × 13,572.30
  4. Step 4: Simplify right side
    18,351.30x = 343,887,201.19
  5. Step 5: Solve for x
    x = 343,887,201.19/18,351.30
  6. Step 6: Final answer
    x = 18,739.12

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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.