Home / 31,432.80-43,373.70-17,284.80

Finding the Fourth Proportional to 31,432.80, 43,373.70 and 17,284.80

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Solution

The fourth proportional to 31,432.80, 43,373.70 and 17,284.80 is: 23,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.80 : 43,373.70 = 17,284.80 : x
  2. Step 2: Convert to fraction form
    31,432.80/43,373.70 = 17,284.80/x
  3. Step 3: Cross multiply
    31,432.80x = 43,373.70 × 17,284.80
  4. Step 4: Simplify right side
    31,432.80x = 749,705,729.76
  5. Step 5: Solve for x
    x = 749,705,729.76/31,432.80
  6. Step 6: Final answer
    x = 23,851.06

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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.