Home / 28,110.72-38,793.24-15,535.56

Finding the Fourth Proportional to 28,110.72, 38,793.24 and 15,535.56

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Solution

The fourth proportional to 28,110.72, 38,793.24 and 15,535.56 is: 21,439.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.72 : 38,793.24 = 15,535.56 : x
  2. Step 2: Convert to fraction form
    28,110.72/38,793.24 = 15,535.56/x
  3. Step 3: Cross multiply
    28,110.72x = 38,793.24 × 15,535.56
  4. Step 4: Simplify right side
    28,110.72x = 602,674,707.61
  5. Step 5: Solve for x
    x = 602,674,707.61/28,110.72
  6. Step 6: Final answer
    x = 21,439.32

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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.