Home / 48,352.46-72,478.79-20,288.81

Finding the Fourth Proportional to 48,352.46, 72,478.79 and 20,288.81

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Solution

The fourth proportional to 48,352.46, 72,478.79 and 20,288.81 is: 30,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,352.46 : 72,478.79 = 20,288.81 : x
  2. Step 2: Convert to fraction form
    48,352.46/72,478.79 = 20,288.81/x
  3. Step 3: Cross multiply
    48,352.46x = 72,478.79 × 20,288.81
  4. Step 4: Simplify right side
    48,352.46x = 1,470,508,399.34
  5. Step 5: Solve for x
    x = 1,470,508,399.34/48,352.46
  6. Step 6: Final answer
    x = 30,412.28

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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.