Home / 21,451.23-32,005.13-18,673.74

Finding the Fourth Proportional to 21,451.23, 32,005.13 and 18,673.74

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Solution

The fourth proportional to 21,451.23, 32,005.13 and 18,673.74 is: 27,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451.23 : 32,005.13 = 18,673.74 : x
  2. Step 2: Convert to fraction form
    21,451.23/32,005.13 = 18,673.74/x
  3. Step 3: Cross multiply
    21,451.23x = 32,005.13 × 18,673.74
  4. Step 4: Simplify right side
    21,451.23x = 597,655,382.92
  5. Step 5: Solve for x
    x = 597,655,382.92/21,451.23
  6. Step 6: Final answer
    x = 27,861.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.