Home / 38,722.64-58,089.35-12,435.44

Finding the Fourth Proportional to 38,722.64, 58,089.35 and 12,435.44

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Solution

The fourth proportional to 38,722.64, 58,089.35 and 12,435.44 is: 18,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,722.64 : 58,089.35 = 12,435.44 : x
  2. Step 2: Convert to fraction form
    38,722.64/58,089.35 = 12,435.44/x
  3. Step 3: Cross multiply
    38,722.64x = 58,089.35 × 12,435.44
  4. Step 4: Simplify right side
    38,722.64x = 722,366,367.21
  5. Step 5: Solve for x
    x = 722,366,367.21/38,722.64
  6. Step 6: Final answer
    x = 18,654.89

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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.