Home / 21,607.29-29,825.46-12,657.66

Finding the Fourth Proportional to 21,607.29, 29,825.46 and 12,657.66

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Solution

The fourth proportional to 21,607.29, 29,825.46 and 12,657.66 is: 17,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.29 : 29,825.46 = 12,657.66 : x
  2. Step 2: Convert to fraction form
    21,607.29/29,825.46 = 12,657.66/x
  3. Step 3: Cross multiply
    21,607.29x = 29,825.46 × 12,657.66
  4. Step 4: Simplify right side
    21,607.29x = 377,520,532.02
  5. Step 5: Solve for x
    x = 377,520,532.02/21,607.29
  6. Step 6: Final answer
    x = 17,471.91

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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.