Home / 31,388.16-47,082.24-11,666.28

Finding the Fourth Proportional to 31,388.16, 47,082.24 and 11,666.28

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Solution

The fourth proportional to 31,388.16, 47,082.24 and 11,666.28 is: 17,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.16 : 47,082.24 = 11,666.28 : x
  2. Step 2: Convert to fraction form
    31,388.16/47,082.24 = 11,666.28/x
  3. Step 3: Cross multiply
    31,388.16x = 47,082.24 × 11,666.28
  4. Step 4: Simplify right side
    31,388.16x = 549,274,594.87
  5. Step 5: Solve for x
    x = 549,274,594.87/31,388.16
  6. Step 6: Final answer
    x = 17,499.42

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Similar ratio
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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.