Home / 31,422.81-43,363.59-17,276.55

Finding the Fourth Proportional to 31,422.81, 43,363.59 and 17,276.55

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Solution

The fourth proportional to 31,422.81, 43,363.59 and 17,276.55 is: 23,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.81 : 43,363.59 = 17,276.55 : x
  2. Step 2: Convert to fraction form
    31,422.81/43,363.59 = 17,276.55/x
  3. Step 3: Cross multiply
    31,422.81x = 43,363.59 × 17,276.55
  4. Step 4: Simplify right side
    31,422.81x = 749,173,230.81
  5. Step 5: Solve for x
    x = 749,173,230.81/31,422.81
  6. Step 6: Final answer
    x = 23,841.70

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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.