Home / 27,777.42-38,332.86-15,202.20

Finding the Fourth Proportional to 27,777.42, 38,332.86 and 15,202.20

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Solution

The fourth proportional to 27,777.42, 38,332.86 and 15,202.20 is: 20,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.42 : 38,332.86 = 15,202.20 : x
  2. Step 2: Convert to fraction form
    27,777.42/38,332.86 = 15,202.20/x
  3. Step 3: Cross multiply
    27,777.42x = 38,332.86 × 15,202.20
  4. Step 4: Simplify right side
    27,777.42x = 582,743,804.29
  5. Step 5: Solve for x
    x = 582,743,804.29/27,777.42
  6. Step 6: Final answer
    x = 20,979.05

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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.