Home / 28,180.67-42,279.24-12,594.65

Finding the Fourth Proportional to 28,180.67, 42,279.24 and 12,594.65

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Solution

The fourth proportional to 28,180.67, 42,279.24 and 12,594.65 is: 18,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.67 : 42,279.24 = 12,594.65 : x
  2. Step 2: Convert to fraction form
    28,180.67/42,279.24 = 12,594.65/x
  3. Step 3: Cross multiply
    28,180.67x = 42,279.24 × 12,594.65
  4. Step 4: Simplify right side
    28,180.67x = 532,492,230.07
  5. Step 5: Solve for x
    x = 532,492,230.07/28,180.67
  6. Step 6: Final answer
    x = 18,895.66

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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.