Home / 48,630.20-72,945.30-20,928.20

Finding the Fourth Proportional to 48,630.20, 72,945.30 and 20,928.20

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Solution

The fourth proportional to 48,630.20, 72,945.30 and 20,928.20 is: 31,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,630.20 : 72,945.30 = 20,928.20 : x
  2. Step 2: Convert to fraction form
    48,630.20/72,945.30 = 20,928.20/x
  3. Step 3: Cross multiply
    48,630.20x = 72,945.30 × 20,928.20
  4. Step 4: Simplify right side
    48,630.20x = 1,526,613,827.46
  5. Step 5: Solve for x
    x = 1,526,613,827.46/48,630.20
  6. Step 6: Final answer
    x = 31,392.30

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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.