Home / 57,864.74-86,797.84-18,421.70

Finding the Fourth Proportional to 57,864.74, 86,797.84 and 18,421.70

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Solution

The fourth proportional to 57,864.74, 86,797.84 and 18,421.70 is: 27,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,864.74 : 86,797.84 = 18,421.70 : x
  2. Step 2: Convert to fraction form
    57,864.74/86,797.84 = 18,421.70/x
  3. Step 3: Cross multiply
    57,864.74x = 86,797.84 × 18,421.70
  4. Step 4: Simplify right side
    57,864.74x = 1,598,963,769.13
  5. Step 5: Solve for x
    x = 1,598,963,769.13/57,864.74
  6. Step 6: Final answer
    x = 27,632.78

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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.