Home / 27,818.18-38,388.84-15,071.06

Finding the Fourth Proportional to 27,818.18, 38,388.84 and 15,071.06

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Solution

The fourth proportional to 27,818.18, 38,388.84 and 15,071.06 is: 20,797.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.18 : 38,388.84 = 15,071.06 : x
  2. Step 2: Convert to fraction form
    27,818.18/38,388.84 = 15,071.06/x
  3. Step 3: Cross multiply
    27,818.18x = 38,388.84 × 15,071.06
  4. Step 4: Simplify right side
    27,818.18x = 578,560,510.97
  5. Step 5: Solve for x
    x = 578,560,510.97/27,818.18
  6. Step 6: Final answer
    x = 20,797.93

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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.