Home / 38,376.11-52,956.92-21,145.08

Finding the Fourth Proportional to 38,376.11, 52,956.92 and 21,145.08

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Solution

The fourth proportional to 38,376.11, 52,956.92 and 21,145.08 is: 29,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.11 : 52,956.92 = 21,145.08 : x
  2. Step 2: Convert to fraction form
    38,376.11/52,956.92 = 21,145.08/x
  3. Step 3: Cross multiply
    38,376.11x = 52,956.92 × 21,145.08
  4. Step 4: Simplify right side
    38,376.11x = 1,119,778,561.40
  5. Step 5: Solve for x
    x = 1,119,778,561.40/38,376.11
  6. Step 6: Final answer
    x = 29,179.05

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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.