Home / 27,886.74-38,484.16-15,139.92

Finding the Fourth Proportional to 27,886.74, 38,484.16 and 15,139.92

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Solution

The fourth proportional to 27,886.74, 38,484.16 and 15,139.92 is: 20,893.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.74 : 38,484.16 = 15,139.92 : x
  2. Step 2: Convert to fraction form
    27,886.74/38,484.16 = 15,139.92/x
  3. Step 3: Cross multiply
    27,886.74x = 38,484.16 × 15,139.92
  4. Step 4: Simplify right side
    27,886.74x = 582,647,103.67
  5. Step 5: Solve for x
    x = 582,647,103.67/27,886.74
  6. Step 6: Final answer
    x = 20,893.34

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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.