Home / 31,489.12-47,233.68-10,712.64

Finding the Fourth Proportional to 31,489.12, 47,233.68 and 10,712.64

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Solution

The fourth proportional to 31,489.12, 47,233.68 and 10,712.64 is: 16,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,489.12 : 47,233.68 = 10,712.64 : x
  2. Step 2: Convert to fraction form
    31,489.12/47,233.68 = 10,712.64/x
  3. Step 3: Cross multiply
    31,489.12x = 47,233.68 × 10,712.64
  4. Step 4: Simplify right side
    31,489.12x = 505,997,409.72
  5. Step 5: Solve for x
    x = 505,997,409.72/31,489.12
  6. Step 6: Final answer
    x = 16,068.96

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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.