Home / 27,848.79-38,433.38-15,911.88

Finding the Fourth Proportional to 27,848.79, 38,433.38 and 15,911.88

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Solution

The fourth proportional to 27,848.79, 38,433.38 and 15,911.88 is: 21,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,848.79 : 38,433.38 = 15,911.88 : x
  2. Step 2: Convert to fraction form
    27,848.79/38,433.38 = 15,911.88/x
  3. Step 3: Cross multiply
    27,848.79x = 38,433.38 × 15,911.88
  4. Step 4: Simplify right side
    27,848.79x = 611,547,251.00
  5. Step 5: Solve for x
    x = 611,547,251.00/27,848.79
  6. Step 6: Final answer
    x = 21,959.56

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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.