Home / 48,131.52-72,226.40-20,429.52

Finding the Fourth Proportional to 48,131.52, 72,226.40 and 20,429.52

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Solution

The fourth proportional to 48,131.52, 72,226.40 and 20,429.52 is: 30,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,131.52 : 72,226.40 = 20,429.52 : x
  2. Step 2: Convert to fraction form
    48,131.52/72,226.40 = 20,429.52/x
  3. Step 3: Cross multiply
    48,131.52x = 72,226.40 × 20,429.52
  4. Step 4: Simplify right side
    48,131.52x = 1,475,550,683.33
  5. Step 5: Solve for x
    x = 1,475,550,683.33/48,131.52
  6. Step 6: Final answer
    x = 30,656.64

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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.