Home / 28,117.75-38,757.35-19,040.24

Finding the Fourth Proportional to 28,117.75, 38,757.35 and 19,040.24

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Solution

The fourth proportional to 28,117.75, 38,757.35 and 19,040.24 is: 26,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.75 : 38,757.35 = 19,040.24 : x
  2. Step 2: Convert to fraction form
    28,117.75/38,757.35 = 19,040.24/x
  3. Step 3: Cross multiply
    28,117.75x = 38,757.35 × 19,040.24
  4. Step 4: Simplify right side
    28,117.75x = 737,949,051.98
  5. Step 5: Solve for x
    x = 737,949,051.98/28,117.75
  6. Step 6: Final answer
    x = 26,244.95

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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.