Home / 28,545.94-42,819.18-12,751.77

Finding the Fourth Proportional to 28,545.94, 42,819.18 and 12,751.77

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Solution

The fourth proportional to 28,545.94, 42,819.18 and 12,751.77 is: 19,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.94 : 42,819.18 = 12,751.77 : x
  2. Step 2: Convert to fraction form
    28,545.94/42,819.18 = 12,751.77/x
  3. Step 3: Cross multiply
    28,545.94x = 42,819.18 × 12,751.77
  4. Step 4: Simplify right side
    28,545.94x = 546,020,334.95
  5. Step 5: Solve for x
    x = 546,020,334.95/28,545.94
  6. Step 6: Final answer
    x = 19,127.78

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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.