Home / 31,521.61-43,499.91-17,374.51

Finding the Fourth Proportional to 31,521.61, 43,499.91 and 17,374.51

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Solution

The fourth proportional to 31,521.61, 43,499.91 and 17,374.51 is: 23,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.61 : 43,499.91 = 17,374.51 : x
  2. Step 2: Convert to fraction form
    31,521.61/43,499.91 = 17,374.51/x
  3. Step 3: Cross multiply
    31,521.61x = 43,499.91 × 17,374.51
  4. Step 4: Simplify right side
    31,521.61x = 755,789,621.29
  5. Step 5: Solve for x
    x = 755,789,621.29/31,521.61
  6. Step 6: Final answer
    x = 23,976.87

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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.