Home / 48,315.80-72,470.10-20,228.60

Finding the Fourth Proportional to 48,315.80, 72,470.10 and 20,228.60

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Solution

The fourth proportional to 48,315.80, 72,470.10 and 20,228.60 is: 30,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,315.80 : 72,470.10 = 20,228.60 : x
  2. Step 2: Convert to fraction form
    48,315.80/72,470.10 = 20,228.60/x
  3. Step 3: Cross multiply
    48,315.80x = 72,470.10 × 20,228.60
  4. Step 4: Simplify right side
    48,315.80x = 1,465,968,664.86
  5. Step 5: Solve for x
    x = 1,465,968,664.86/48,315.80
  6. Step 6: Final answer
    x = 30,341.39

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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.