Home / 21,607.59-29,817.40-12,176.76

Finding the Fourth Proportional to 21,607.59, 29,817.40 and 12,176.76

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Solution

The fourth proportional to 21,607.59, 29,817.40 and 12,176.76 is: 16,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.59 : 29,817.40 = 12,176.76 : x
  2. Step 2: Convert to fraction form
    21,607.59/29,817.40 = 12,176.76/x
  3. Step 3: Cross multiply
    21,607.59x = 29,817.40 × 12,176.76
  4. Step 4: Simplify right side
    21,607.59x = 363,079,323.62
  5. Step 5: Solve for x
    x = 363,079,323.62/21,607.59
  6. Step 6: Final answer
    x = 16,803.32

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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.