Home / 38,812.62-58,218.93-12,158.83

Finding the Fourth Proportional to 38,812.62, 58,218.93 and 12,158.83

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Solution

The fourth proportional to 38,812.62, 58,218.93 and 12,158.83 is: 18,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,812.62 : 58,218.93 = 12,158.83 : x
  2. Step 2: Convert to fraction form
    38,812.62/58,218.93 = 12,158.83/x
  3. Step 3: Cross multiply
    38,812.62x = 58,218.93 × 12,158.83
  4. Step 4: Simplify right side
    38,812.62x = 707,874,274.97
  5. Step 5: Solve for x
    x = 707,874,274.97/38,812.62
  6. Step 6: Final answer
    x = 18,238.25

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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.