Home / 20,301.92-28,014.55-11,349.17

Finding the Fourth Proportional to 20,301.92, 28,014.55 and 11,349.17

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Solution

The fourth proportional to 20,301.92, 28,014.55 and 11,349.17 is: 15,660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.92 : 28,014.55 = 11,349.17 : x
  2. Step 2: Convert to fraction form
    20,301.92/28,014.55 = 11,349.17/x
  3. Step 3: Cross multiply
    20,301.92x = 28,014.55 × 11,349.17
  4. Step 4: Simplify right side
    20,301.92x = 317,941,693.60
  5. Step 5: Solve for x
    x = 317,941,693.60/20,301.92
  6. Step 6: Final answer
    x = 15,660.68

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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.