Home / 27,645.90-38,151.30-15,070.68

Finding the Fourth Proportional to 27,645.90, 38,151.30 and 15,070.68

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Solution

The fourth proportional to 27,645.90, 38,151.30 and 15,070.68 is: 20,797.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.90 : 38,151.30 = 15,070.68 : x
  2. Step 2: Convert to fraction form
    27,645.90/38,151.30 = 15,070.68/x
  3. Step 3: Cross multiply
    27,645.90x = 38,151.30 × 15,070.68
  4. Step 4: Simplify right side
    27,645.90x = 574,966,033.88
  5. Step 5: Solve for x
    x = 574,966,033.88/27,645.90
  6. Step 6: Final answer
    x = 20,797.52

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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.