Home / 48,421.44-72,637.92-20,715.84

Finding the Fourth Proportional to 48,421.44, 72,637.92 and 20,715.84

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Solution

The fourth proportional to 48,421.44, 72,637.92 and 20,715.84 is: 31,076.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,421.44 : 72,637.92 = 20,715.84 : x
  2. Step 2: Convert to fraction form
    48,421.44/72,637.92 = 20,715.84/x
  3. Step 3: Cross multiply
    48,421.44x = 72,637.92 × 20,715.84
  4. Step 4: Simplify right side
    48,421.44x = 1,504,755,528.65
  5. Step 5: Solve for x
    x = 1,504,755,528.65/48,421.44
  6. Step 6: Final answer
    x = 31,076.22

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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.