Home / 28,562.70-42,854.32-12,766.41

Finding the Fourth Proportional to 28,562.70, 42,854.32 and 12,766.41

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Solution

The fourth proportional to 28,562.70, 42,854.32 and 12,766.41 is: 19,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.70 : 42,854.32 = 12,766.41 : x
  2. Step 2: Convert to fraction form
    28,562.70/42,854.32 = 12,766.41/x
  3. Step 3: Cross multiply
    28,562.70x = 42,854.32 × 12,766.41
  4. Step 4: Simplify right side
    28,562.70x = 547,095,763.54
  5. Step 5: Solve for x
    x = 547,095,763.54/28,562.70
  6. Step 6: Final answer
    x = 19,154.20

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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.