Home / 31,512.60-43,489.44-18,088.20

Finding the Fourth Proportional to 31,512.60, 43,489.44 and 18,088.20

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Solution

The fourth proportional to 31,512.60, 43,489.44 and 18,088.20 is: 24,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.60 : 43,489.44 = 18,088.20 : x
  2. Step 2: Convert to fraction form
    31,512.60/43,489.44 = 18,088.20/x
  3. Step 3: Cross multiply
    31,512.60x = 43,489.44 × 18,088.20
  4. Step 4: Simplify right side
    31,512.60x = 786,645,688.61
  5. Step 5: Solve for x
    x = 786,645,688.61/31,512.60
  6. Step 6: Final answer
    x = 24,962.89

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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.