Home / 48,458.39-72,687.38-12,919.64

Finding the Fourth Proportional to 48,458.39, 72,687.38 and 12,919.64

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Solution

The fourth proportional to 48,458.39, 72,687.38 and 12,919.64 is: 19,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,458.39 : 72,687.38 = 12,919.64 : x
  2. Step 2: Convert to fraction form
    48,458.39/72,687.38 = 12,919.64/x
  3. Step 3: Cross multiply
    48,458.39x = 72,687.38 × 12,919.64
  4. Step 4: Simplify right side
    48,458.39x = 939,094,354.11
  5. Step 5: Solve for x
    x = 939,094,354.11/48,458.39
  6. Step 6: Final answer
    x = 19,379.40

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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.