Home / 27,708.08-38,219.65-15,768.88

Finding the Fourth Proportional to 27,708.08, 38,219.65 and 15,768.88

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Solution

The fourth proportional to 27,708.08, 38,219.65 and 15,768.88 is: 21,751.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.08 : 38,219.65 = 15,768.88 : x
  2. Step 2: Convert to fraction form
    27,708.08/38,219.65 = 15,768.88/x
  3. Step 3: Cross multiply
    27,708.08x = 38,219.65 × 15,768.88
  4. Step 4: Simplify right side
    27,708.08x = 602,680,939.52
  5. Step 5: Solve for x
    x = 602,680,939.52/27,708.08
  6. Step 6: Final answer
    x = 21,751.09

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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.