Home / 27,872.10-38,457.59-16,545.87

Finding the Fourth Proportional to 27,872.10, 38,457.59 and 16,545.87

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Solution

The fourth proportional to 27,872.10, 38,457.59 and 16,545.87 is: 22,829.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.10 : 38,457.59 = 16,545.87 : x
  2. Step 2: Convert to fraction form
    27,872.10/38,457.59 = 16,545.87/x
  3. Step 3: Cross multiply
    27,872.10x = 38,457.59 × 16,545.87
  4. Step 4: Simplify right side
    27,872.10x = 636,314,201.92
  5. Step 5: Solve for x
    x = 636,314,201.92/27,872.10
  6. Step 6: Final answer
    x = 22,829.79

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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.