Home / 27,700.40-38,226.56-15,125.16

Finding the Fourth Proportional to 27,700.40, 38,226.56 and 15,125.16

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Solution

The fourth proportional to 27,700.40, 38,226.56 and 15,125.16 is: 20,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.40 : 38,226.56 = 15,125.16 : x
  2. Step 2: Convert to fraction form
    27,700.40/38,226.56 = 15,125.16/x
  3. Step 3: Cross multiply
    27,700.40x = 38,226.56 × 15,125.16
  4. Step 4: Simplify right side
    27,700.40x = 578,182,836.25
  5. Step 5: Solve for x
    x = 578,182,836.25/27,700.40
  6. Step 6: Final answer
    x = 20,872.73

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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.