Home / 27,809.30-38,367.30-15,864.04

Finding the Fourth Proportional to 27,809.30, 38,367.30 and 15,864.04

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Solution

The fourth proportional to 27,809.30, 38,367.30 and 15,864.04 is: 21,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.30 : 38,367.30 = 15,864.04 : x
  2. Step 2: Convert to fraction form
    27,809.30/38,367.30 = 15,864.04/x
  3. Step 3: Cross multiply
    27,809.30x = 38,367.30 × 15,864.04
  4. Step 4: Simplify right side
    27,809.30x = 608,660,381.89
  5. Step 5: Solve for x
    x = 608,660,381.89/27,809.30
  6. Step 6: Final answer
    x = 21,886.94

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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.