Home / 27,947.88-38,568.14-15,372.68

Finding the Fourth Proportional to 27,947.88, 38,568.14 and 15,372.68

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Solution

The fourth proportional to 27,947.88, 38,568.14 and 15,372.68 is: 21,214.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.88 : 38,568.14 = 15,372.68 : x
  2. Step 2: Convert to fraction form
    27,947.88/38,568.14 = 15,372.68/x
  3. Step 3: Cross multiply
    27,947.88x = 38,568.14 × 15,372.68
  4. Step 4: Simplify right side
    27,947.88x = 592,895,674.42
  5. Step 5: Solve for x
    x = 592,895,674.42/27,947.88
  6. Step 6: Final answer
    x = 21,214.33

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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.