Home / 27,680.34-38,200.93-15,747.53

Finding the Fourth Proportional to 27,680.34, 38,200.93 and 15,747.53

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Solution

The fourth proportional to 27,680.34, 38,200.93 and 15,747.53 is: 21,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.34 : 38,200.93 = 15,747.53 : x
  2. Step 2: Convert to fraction form
    27,680.34/38,200.93 = 15,747.53/x
  3. Step 3: Cross multiply
    27,680.34x = 38,200.93 × 15,747.53
  4. Step 4: Simplify right side
    27,680.34x = 601,570,060.83
  5. Step 5: Solve for x
    x = 601,570,060.83/27,680.34
  6. Step 6: Final answer
    x = 21,732.75

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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.