Home / 31,275.64-43,158.77-17,125.75

Finding the Fourth Proportional to 31,275.64, 43,158.77 and 17,125.75

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Solution

The fourth proportional to 31,275.64, 43,158.77 and 17,125.75 is: 23,632.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,275.64 : 43,158.77 = 17,125.75 : x
  2. Step 2: Convert to fraction form
    31,275.64/43,158.77 = 17,125.75/x
  3. Step 3: Cross multiply
    31,275.64x = 43,158.77 × 17,125.75
  4. Step 4: Simplify right side
    31,275.64x = 739,126,089.53
  5. Step 5: Solve for x
    x = 739,126,089.53/31,275.64
  6. Step 6: Final answer
    x = 23,632.65

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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.