Home / 21,326.62-31,990.41-16,947.16

Finding the Fourth Proportional to 21,326.62, 31,990.41 and 16,947.16

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Solution

The fourth proportional to 21,326.62, 31,990.41 and 16,947.16 is: 25,421.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.62 : 31,990.41 = 16,947.16 : x
  2. Step 2: Convert to fraction form
    21,326.62/31,990.41 = 16,947.16/x
  3. Step 3: Cross multiply
    21,326.62x = 31,990.41 × 16,947.16
  4. Step 4: Simplify right side
    21,326.62x = 542,146,596.74
  5. Step 5: Solve for x
    x = 542,146,596.74/21,326.62
  6. Step 6: Final answer
    x = 25,421.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.