Home / 27,918.80-38,527.14-15,981.74

Finding the Fourth Proportional to 27,918.80, 38,527.14 and 15,981.74

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Solution

The fourth proportional to 27,918.80, 38,527.14 and 15,981.74 is: 22,054.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.80 : 38,527.14 = 15,981.74 : x
  2. Step 2: Convert to fraction form
    27,918.80/38,527.14 = 15,981.74/x
  3. Step 3: Cross multiply
    27,918.80x = 38,527.14 × 15,981.74
  4. Step 4: Simplify right side
    27,918.80x = 615,730,734.42
  5. Step 5: Solve for x
    x = 615,730,734.42/27,918.80
  6. Step 6: Final answer
    x = 22,054.34

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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.