Home / 38,519.13-53,156.21-21,752.13

Finding the Fourth Proportional to 38,519.13, 53,156.21 and 21,752.13

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Solution

The fourth proportional to 38,519.13, 53,156.21 and 21,752.13 is: 30,017.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.13 : 53,156.21 = 21,752.13 : x
  2. Step 2: Convert to fraction form
    38,519.13/53,156.21 = 21,752.13/x
  3. Step 3: Cross multiply
    38,519.13x = 53,156.21 × 21,752.13
  4. Step 4: Simplify right side
    38,519.13x = 1,156,260,790.23
  5. Step 5: Solve for x
    x = 1,156,260,790.23/38,519.13
  6. Step 6: Final answer
    x = 30,017.83

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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.