Home / 27,625.68-38,123.48-15,689.01

Finding the Fourth Proportional to 27,625.68, 38,123.48 and 15,689.01

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Solution

The fourth proportional to 27,625.68, 38,123.48 and 15,689.01 is: 21,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,625.68 : 38,123.48 = 15,689.01 : x
  2. Step 2: Convert to fraction form
    27,625.68/38,123.48 = 15,689.01/x
  3. Step 3: Cross multiply
    27,625.68x = 38,123.48 × 15,689.01
  4. Step 4: Simplify right side
    27,625.68x = 598,119,841.14
  5. Step 5: Solve for x
    x = 598,119,841.14/27,625.68
  6. Step 6: Final answer
    x = 21,650.86

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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.