Home / 21,542.16-29,724.96-12,108.92

Finding the Fourth Proportional to 21,542.16, 29,724.96 and 12,108.92

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Solution

The fourth proportional to 21,542.16, 29,724.96 and 12,108.92 is: 16,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.16 : 29,724.96 = 12,108.92 : x
  2. Step 2: Convert to fraction form
    21,542.16/29,724.96 = 12,108.92/x
  3. Step 3: Cross multiply
    21,542.16x = 29,724.96 × 12,108.92
  4. Step 4: Simplify right side
    21,542.16x = 359,937,162.64
  5. Step 5: Solve for x
    x = 359,937,162.64/21,542.16
  6. Step 6: Final answer
    x = 16,708.50

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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.