Home / 27,700.56-38,227.68-15,125.40

Finding the Fourth Proportional to 27,700.56, 38,227.68 and 15,125.40

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Solution

The fourth proportional to 27,700.56, 38,227.68 and 15,125.40 is: 20,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.56 : 38,227.68 = 15,125.40 : x
  2. Step 2: Convert to fraction form
    27,700.56/38,227.68 = 15,125.40/x
  3. Step 3: Cross multiply
    27,700.56x = 38,227.68 × 15,125.40
  4. Step 4: Simplify right side
    27,700.56x = 578,208,951.07
  5. Step 5: Solve for x
    x = 578,208,951.07/27,700.56
  6. Step 6: Final answer
    x = 20,873.55

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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.