Home / 38,399.60-57,599.38-12,106.40

Finding the Fourth Proportional to 38,399.60, 57,599.38 and 12,106.40

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Solution

The fourth proportional to 38,399.60, 57,599.38 and 12,106.40 is: 18,159.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.60 : 57,599.38 = 12,106.40 : x
  2. Step 2: Convert to fraction form
    38,399.60/57,599.38 = 12,106.40/x
  3. Step 3: Cross multiply
    38,399.60x = 57,599.38 × 12,106.40
  4. Step 4: Simplify right side
    38,399.60x = 697,321,134.03
  5. Step 5: Solve for x
    x = 697,321,134.03/38,399.60
  6. Step 6: Final answer
    x = 18,159.59

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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.