Home / 31,398.84-43,330.75-17,251.79

Finding the Fourth Proportional to 31,398.84, 43,330.75 and 17,251.79

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Solution

The fourth proportional to 31,398.84, 43,330.75 and 17,251.79 is: 23,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,398.84 : 43,330.75 = 17,251.79 : x
  2. Step 2: Convert to fraction form
    31,398.84/43,330.75 = 17,251.79/x
  3. Step 3: Cross multiply
    31,398.84x = 43,330.75 × 17,251.79
  4. Step 4: Simplify right side
    31,398.84x = 747,532,739.76
  5. Step 5: Solve for x
    x = 747,532,739.76/31,398.84
  6. Step 6: Final answer
    x = 23,807.65

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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.