Home / 38,968.65-58,458.15-12,664.53

Finding the Fourth Proportional to 38,968.65, 58,458.15 and 12,664.53

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Solution

The fourth proportional to 38,968.65, 58,458.15 and 12,664.53 is: 18,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,968.65 : 58,458.15 = 12,664.53 : x
  2. Step 2: Convert to fraction form
    38,968.65/58,458.15 = 12,664.53/x
  3. Step 3: Cross multiply
    38,968.65x = 58,458.15 × 12,664.53
  4. Step 4: Simplify right side
    38,968.65x = 740,344,994.42
  5. Step 5: Solve for x
    x = 740,344,994.42/38,968.65
  6. Step 6: Final answer
    x = 18,998.48

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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.