Home / 38,937.16-58,405.74-12,644.56

Finding the Fourth Proportional to 38,937.16, 58,405.74 and 12,644.56

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Solution

The fourth proportional to 38,937.16, 58,405.74 and 12,644.56 is: 18,966.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,937.16 : 58,405.74 = 12,644.56 : x
  2. Step 2: Convert to fraction form
    38,937.16/58,405.74 = 12,644.56/x
  3. Step 3: Cross multiply
    38,937.16x = 58,405.74 × 12,644.56
  4. Step 4: Simplify right side
    38,937.16x = 738,514,883.77
  5. Step 5: Solve for x
    x = 738,514,883.77/38,937.16
  6. Step 6: Final answer
    x = 18,966.84

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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.