Home / 31,778.20-43,754.22-26,988.16

Finding the Fourth Proportional to 31,778.20, 43,754.22 and 26,988.16

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Solution

The fourth proportional to 31,778.20, 43,754.22 and 26,988.16 is: 37,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.20 : 43,754.22 = 26,988.16 : x
  2. Step 2: Convert to fraction form
    31,778.20/43,754.22 = 26,988.16/x
  3. Step 3: Cross multiply
    31,778.20x = 43,754.22 × 26,988.16
  4. Step 4: Simplify right side
    31,778.20x = 1,180,845,890.04
  5. Step 5: Solve for x
    x = 1,180,845,890.04/31,778.20
  6. Step 6: Final answer
    x = 37,158.99

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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.