Home / 31,349.28-43,261.99-17,920.82

Finding the Fourth Proportional to 31,349.28, 43,261.99 and 17,920.82

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Solution

The fourth proportional to 31,349.28, 43,261.99 and 17,920.82 is: 24,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,349.28 : 43,261.99 = 17,920.82 : x
  2. Step 2: Convert to fraction form
    31,349.28/43,261.99 = 17,920.82/x
  3. Step 3: Cross multiply
    31,349.28x = 43,261.99 × 17,920.82
  4. Step 4: Simplify right side
    31,349.28x = 775,290,119.32
  5. Step 5: Solve for x
    x = 775,290,119.32/31,349.28
  6. Step 6: Final answer
    x = 24,730.72

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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.