Home / 57,884.32-86,833.68-20,436.80

Finding the Fourth Proportional to 57,884.32, 86,833.68 and 20,436.80

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Solution

The fourth proportional to 57,884.32, 86,833.68 and 20,436.80 is: 30,657.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,884.32 : 86,833.68 = 20,436.80 : x
  2. Step 2: Convert to fraction form
    57,884.32/86,833.68 = 20,436.80/x
  3. Step 3: Cross multiply
    57,884.32x = 86,833.68 × 20,436.80
  4. Step 4: Simplify right side
    57,884.32x = 1,774,602,551.42
  5. Step 5: Solve for x
    x = 1,774,602,551.42/57,884.32
  6. Step 6: Final answer
    x = 30,657.74

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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.