Home / 16,981.74-23,432.31-9,427.68

Finding the Fourth Proportional to 16,981.74, 23,432.31 and 9,427.68

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Solution

The fourth proportional to 16,981.74, 23,432.31 and 9,427.68 is: 13,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.74 : 23,432.31 = 9,427.68 : x
  2. Step 2: Convert to fraction form
    16,981.74/23,432.31 = 9,427.68/x
  3. Step 3: Cross multiply
    16,981.74x = 23,432.31 × 9,427.68
  4. Step 4: Simplify right side
    16,981.74x = 220,912,320.34
  5. Step 5: Solve for x
    x = 220,912,320.34/16,981.74
  6. Step 6: Final answer
    x = 13,008.82

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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.