Home / 38,971.62-58,464.30-12,671.72

Finding the Fourth Proportional to 38,971.62, 58,464.30 and 12,671.72

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Solution

The fourth proportional to 38,971.62, 58,464.30 and 12,671.72 is: 19,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,971.62 : 58,464.30 = 12,671.72 : x
  2. Step 2: Convert to fraction form
    38,971.62/58,464.30 = 12,671.72/x
  3. Step 3: Cross multiply
    38,971.62x = 58,464.30 × 12,671.72
  4. Step 4: Simplify right side
    38,971.62x = 740,843,239.60
  5. Step 5: Solve for x
    x = 740,843,239.60/38,971.62
  6. Step 6: Final answer
    x = 19,009.81

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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.