Home / 38,416.38-57,632.40-21,783.84

Finding the Fourth Proportional to 38,416.38, 57,632.40 and 21,783.84

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Solution

The fourth proportional to 38,416.38, 57,632.40 and 21,783.84 is: 32,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416.38 : 57,632.40 = 21,783.84 : x
  2. Step 2: Convert to fraction form
    38,416.38/57,632.40 = 21,783.84/x
  3. Step 3: Cross multiply
    38,416.38x = 57,632.40 × 21,783.84
  4. Step 4: Simplify right side
    38,416.38x = 1,255,454,980.42
  5. Step 5: Solve for x
    x = 1,255,454,980.42/38,416.38
  6. Step 6: Final answer
    x = 32,680.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.