Home / 31,521.84-43,502.10-17,374.65

Finding the Fourth Proportional to 31,521.84, 43,502.10 and 17,374.65

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Solution

The fourth proportional to 31,521.84, 43,502.10 and 17,374.65 is: 23,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.84 : 43,502.10 = 17,374.65 : x
  2. Step 2: Convert to fraction form
    31,521.84/43,502.10 = 17,374.65/x
  3. Step 3: Cross multiply
    31,521.84x = 43,502.10 × 17,374.65
  4. Step 4: Simplify right side
    31,521.84x = 755,833,761.77
  5. Step 5: Solve for x
    x = 755,833,761.77/31,521.84
  6. Step 6: Final answer
    x = 23,978.10

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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.