Home / 28,257.65-42,385.15-10,491.85

Finding the Fourth Proportional to 28,257.65, 42,385.15 and 10,491.85

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Solution

The fourth proportional to 28,257.65, 42,385.15 and 10,491.85 is: 15,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.65 : 42,385.15 = 10,491.85 : x
  2. Step 2: Convert to fraction form
    28,257.65/42,385.15 = 10,491.85/x
  3. Step 3: Cross multiply
    28,257.65x = 42,385.15 × 10,491.85
  4. Step 4: Simplify right side
    28,257.65x = 444,698,503.84
  5. Step 5: Solve for x
    x = 444,698,503.84/28,257.65
  6. Step 6: Final answer
    x = 15,737.28

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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.