Home / 27,693.43-38,211.81-15,756.05

Finding the Fourth Proportional to 27,693.43, 38,211.81 and 15,756.05

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Solution

The fourth proportional to 27,693.43, 38,211.81 and 15,756.05 is: 21,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.43 : 38,211.81 = 15,756.05 : x
  2. Step 2: Convert to fraction form
    27,693.43/38,211.81 = 15,756.05/x
  3. Step 3: Cross multiply
    27,693.43x = 38,211.81 × 15,756.05
  4. Step 4: Simplify right side
    27,693.43x = 602,067,188.95
  5. Step 5: Solve for x
    x = 602,067,188.95/27,693.43
  6. Step 6: Final answer
    x = 21,740.43

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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.