Home / 31,156.60-42,995.86-17,009.44

Finding the Fourth Proportional to 31,156.60, 42,995.86 and 17,009.44

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Solution

The fourth proportional to 31,156.60, 42,995.86 and 17,009.44 is: 23,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,156.60 : 42,995.86 = 17,009.44 : x
  2. Step 2: Convert to fraction form
    31,156.60/42,995.86 = 17,009.44/x
  3. Step 3: Cross multiply
    31,156.60x = 42,995.86 × 17,009.44
  4. Step 4: Simplify right side
    31,156.60x = 731,335,688.43
  5. Step 5: Solve for x
    x = 731,335,688.43/31,156.60
  6. Step 6: Final answer
    x = 23,472.90

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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.