Home / 38,728.43-58,095.27-12,431.58

Finding the Fourth Proportional to 38,728.43, 58,095.27 and 12,431.58

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Solution

The fourth proportional to 38,728.43, 58,095.27 and 12,431.58 is: 18,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.43 : 58,095.27 = 12,431.58 : x
  2. Step 2: Convert to fraction form
    38,728.43/58,095.27 = 12,431.58/x
  3. Step 3: Cross multiply
    38,728.43x = 58,095.27 × 12,431.58
  4. Step 4: Simplify right side
    38,728.43x = 722,215,996.63
  5. Step 5: Solve for x
    x = 722,215,996.63/38,728.43
  6. Step 6: Final answer
    x = 18,648.21

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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.