Home / 21,890.75-32,815.55-16,545.75

Finding the Fourth Proportional to 21,890.75, 32,815.55 and 16,545.75

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Solution

The fourth proportional to 21,890.75, 32,815.55 and 16,545.75 is: 24,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.75 : 32,815.55 = 16,545.75 : x
  2. Step 2: Convert to fraction form
    21,890.75/32,815.55 = 16,545.75/x
  3. Step 3: Cross multiply
    21,890.75x = 32,815.55 × 16,545.75
  4. Step 4: Simplify right side
    21,890.75x = 542,957,803.68
  5. Step 5: Solve for x
    x = 542,957,803.68/21,890.75
  6. Step 6: Final answer
    x = 24,803.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.