Home / 28,588.24-42,859.46-13,587.83

Finding the Fourth Proportional to 28,588.24, 42,859.46 and 13,587.83

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Solution

The fourth proportional to 28,588.24, 42,859.46 and 13,587.83 is: 20,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.24 : 42,859.46 = 13,587.83 : x
  2. Step 2: Convert to fraction form
    28,588.24/42,859.46 = 13,587.83/x
  3. Step 3: Cross multiply
    28,588.24x = 42,859.46 × 13,587.83
  4. Step 4: Simplify right side
    28,588.24x = 582,366,988.43
  5. Step 5: Solve for x
    x = 582,366,988.43/28,588.24
  6. Step 6: Final answer
    x = 20,370.86

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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.