Home / 38,621.25-57,919.59-12,319.92

Finding the Fourth Proportional to 38,621.25, 57,919.59 and 12,319.92

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Solution

The fourth proportional to 38,621.25, 57,919.59 and 12,319.92 is: 18,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621.25 : 57,919.59 = 12,319.92 : x
  2. Step 2: Convert to fraction form
    38,621.25/57,919.59 = 12,319.92/x
  3. Step 3: Cross multiply
    38,621.25x = 57,919.59 × 12,319.92
  4. Step 4: Simplify right side
    38,621.25x = 713,564,715.23
  5. Step 5: Solve for x
    x = 713,564,715.23/38,621.25
  6. Step 6: Final answer
    x = 18,475.96

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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.