Home / 27,685.34-38,207.84-15,752.54

Finding the Fourth Proportional to 27,685.34, 38,207.84 and 15,752.54

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Solution

The fourth proportional to 27,685.34, 38,207.84 and 15,752.54 is: 21,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,685.34 : 38,207.84 = 15,752.54 : x
  2. Step 2: Convert to fraction form
    27,685.34/38,207.84 = 15,752.54/x
  3. Step 3: Cross multiply
    27,685.34x = 38,207.84 × 15,752.54
  4. Step 4: Simplify right side
    27,685.34x = 601,870,527.91
  5. Step 5: Solve for x
    x = 601,870,527.91/27,685.34
  6. Step 6: Final answer
    x = 21,739.68

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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.