Home / 38,157.40-57,248.10-18,436.60

Finding the Fourth Proportional to 38,157.40, 57,248.10 and 18,436.60

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Solution

The fourth proportional to 38,157.40, 57,248.10 and 18,436.60 is: 27,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.40 : 57,248.10 = 18,436.60 : x
  2. Step 2: Convert to fraction form
    38,157.40/57,248.10 = 18,436.60/x
  3. Step 3: Cross multiply
    38,157.40x = 57,248.10 × 18,436.60
  4. Step 4: Simplify right side
    38,157.40x = 1,055,460,320.46
  5. Step 5: Solve for x
    x = 1,055,460,320.46/38,157.40
  6. Step 6: Final answer
    x = 27,660.70

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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.