Home / 20,589.48-28,398.48-13,037.04

Finding the Fourth Proportional to 20,589.48, 28,398.48 and 13,037.04

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Solution

The fourth proportional to 20,589.48, 28,398.48 and 13,037.04 is: 17,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.48 : 28,398.48 = 13,037.04 : x
  2. Step 2: Convert to fraction form
    20,589.48/28,398.48 = 13,037.04/x
  3. Step 3: Cross multiply
    20,589.48x = 28,398.48 × 13,037.04
  4. Step 4: Simplify right side
    20,589.48x = 370,232,119.70
  5. Step 5: Solve for x
    x = 370,232,119.70/20,589.48
  6. Step 6: Final answer
    x = 17,981.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.