Home / 28,589.74-42,861.70-13,589.33

Finding the Fourth Proportional to 28,589.74, 42,861.70 and 13,589.33

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Solution

The fourth proportional to 28,589.74, 42,861.70 and 13,589.33 is: 20,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,589.74 : 42,861.70 = 13,589.33 : x
  2. Step 2: Convert to fraction form
    28,589.74/42,861.70 = 13,589.33/x
  3. Step 3: Cross multiply
    28,589.74x = 42,861.70 × 13,589.33
  4. Step 4: Simplify right side
    28,589.74x = 582,461,785.66
  5. Step 5: Solve for x
    x = 582,461,785.66/28,589.74
  6. Step 6: Final answer
    x = 20,373.11

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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.