Home / 20,933.60-28,888.56-11,502.14

Finding the Fourth Proportional to 20,933.60, 28,888.56 and 11,502.14

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Solution

The fourth proportional to 20,933.60, 28,888.56 and 11,502.14 is: 15,873.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.60 : 28,888.56 = 11,502.14 : x
  2. Step 2: Convert to fraction form
    20,933.60/28,888.56 = 11,502.14/x
  3. Step 3: Cross multiply
    20,933.60x = 28,888.56 × 11,502.14
  4. Step 4: Simplify right side
    20,933.60x = 332,280,117.08
  5. Step 5: Solve for x
    x = 332,280,117.08/20,933.60
  6. Step 6: Final answer
    x = 15,873.06

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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.