Home / 38,151.77-52,648.89-21,156.05

Finding the Fourth Proportional to 38,151.77, 52,648.89 and 21,156.05

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Solution

The fourth proportional to 38,151.77, 52,648.89 and 21,156.05 is: 29,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,151.77 : 52,648.89 = 21,156.05 : x
  2. Step 2: Convert to fraction form
    38,151.77/52,648.89 = 21,156.05/x
  3. Step 3: Cross multiply
    38,151.77x = 52,648.89 × 21,156.05
  4. Step 4: Simplify right side
    38,151.77x = 1,113,842,286.04
  5. Step 5: Solve for x
    x = 1,113,842,286.04/38,151.77
  6. Step 6: Final answer
    x = 29,195.04

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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.