Home / 28,111.24-38,793.42-15,364.42

Finding the Fourth Proportional to 28,111.24, 38,793.42 and 15,364.42

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Solution

The fourth proportional to 28,111.24, 38,793.42 and 15,364.42 is: 21,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.24 : 38,793.42 = 15,364.42 : x
  2. Step 2: Convert to fraction form
    28,111.24/38,793.42 = 15,364.42/x
  3. Step 3: Cross multiply
    28,111.24x = 38,793.42 × 15,364.42
  4. Step 4: Simplify right side
    28,111.24x = 596,038,398.12
  5. Step 5: Solve for x
    x = 596,038,398.12/28,111.24
  6. Step 6: Final answer
    x = 21,202.85

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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.