Home / 27,722.96-38,257.72-15,147.76

Finding the Fourth Proportional to 27,722.96, 38,257.72 and 15,147.76

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Solution

The fourth proportional to 27,722.96, 38,257.72 and 15,147.76 is: 20,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.96 : 38,257.72 = 15,147.76 : x
  2. Step 2: Convert to fraction form
    27,722.96/38,257.72 = 15,147.76/x
  3. Step 3: Cross multiply
    27,722.96x = 38,257.72 × 15,147.76
  4. Step 4: Simplify right side
    27,722.96x = 579,518,760.71
  5. Step 5: Solve for x
    x = 579,518,760.71/27,722.96
  6. Step 6: Final answer
    x = 20,903.93

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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.