Home / 28,586.60-42,879.92-15,445.16

Finding the Fourth Proportional to 28,586.60, 42,879.92 and 15,445.16

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Solution

The fourth proportional to 28,586.60, 42,879.92 and 15,445.16 is: 23,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.60 : 42,879.92 = 15,445.16 : x
  2. Step 2: Convert to fraction form
    28,586.60/42,879.92 = 15,445.16/x
  3. Step 3: Cross multiply
    28,586.60x = 42,879.92 × 15,445.16
  4. Step 4: Simplify right side
    28,586.60x = 662,287,225.19
  5. Step 5: Solve for x
    x = 662,287,225.19/28,586.60
  6. Step 6: Final answer
    x = 23,167.75

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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.