Home / 20,859.20-31,248.48-11,597.12

Finding the Fourth Proportional to 20,859.20, 31,248.48 and 11,597.12

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Solution

The fourth proportional to 20,859.20, 31,248.48 and 11,597.12 is: 17,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.20 : 31,248.48 = 11,597.12 : x
  2. Step 2: Convert to fraction form
    20,859.20/31,248.48 = 11,597.12/x
  3. Step 3: Cross multiply
    20,859.20x = 31,248.48 × 11,597.12
  4. Step 4: Simplify right side
    20,859.20x = 362,392,372.38
  5. Step 5: Solve for x
    x = 362,392,372.38/20,859.20
  6. Step 6: Final answer
    x = 17,373.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.