Home / 27,966.03-38,593.10-15,390.78

Finding the Fourth Proportional to 27,966.03, 38,593.10 and 15,390.78

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Solution

The fourth proportional to 27,966.03, 38,593.10 and 15,390.78 is: 21,239.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.03 : 38,593.10 = 15,390.78 : x
  2. Step 2: Convert to fraction form
    27,966.03/38,593.10 = 15,390.78/x
  3. Step 3: Cross multiply
    27,966.03x = 38,593.10 × 15,390.78
  4. Step 4: Simplify right side
    27,966.03x = 593,977,834.66
  5. Step 5: Solve for x
    x = 593,977,834.66/27,966.03
  6. Step 6: Final answer
    x = 21,239.26

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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.