Home / 27,646.20-38,151.75-15,070.95

Finding the Fourth Proportional to 27,646.20, 38,151.75 and 15,070.95

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Solution

The fourth proportional to 27,646.20, 38,151.75 and 15,070.95 is: 20,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,646.20 : 38,151.75 = 15,070.95 : x
  2. Step 2: Convert to fraction form
    27,646.20/38,151.75 = 15,070.95/x
  3. Step 3: Cross multiply
    27,646.20x = 38,151.75 × 15,070.95
  4. Step 4: Simplify right side
    27,646.20x = 574,983,116.66
  5. Step 5: Solve for x
    x = 574,983,116.66/27,646.20
  6. Step 6: Final answer
    x = 20,797.91

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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.