Home / 27,708.89-38,238.41-15,134.45

Finding the Fourth Proportional to 27,708.89, 38,238.41 and 15,134.45

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Solution

The fourth proportional to 27,708.89, 38,238.41 and 15,134.45 is: 20,885.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.89 : 38,238.41 = 15,134.45 : x
  2. Step 2: Convert to fraction form
    27,708.89/38,238.41 = 15,134.45/x
  3. Step 3: Cross multiply
    27,708.89x = 38,238.41 × 15,134.45
  4. Step 4: Simplify right side
    27,708.89x = 578,717,150.87
  5. Step 5: Solve for x
    x = 578,717,150.87/27,708.89
  6. Step 6: Final answer
    x = 20,885.62

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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.