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Finding the Fourth Proportional to 32,220.40, 48,233.40 and 28,721.20

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Solution

The fourth proportional to 32,220.40, 48,233.40 and 28,721.20 is: 42,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,220.40 : 48,233.40 = 28,721.20 : x
  2. Step 2: Convert to fraction form
    32,220.40/48,233.40 = 28,721.20/x
  3. Step 3: Cross multiply
    32,220.40x = 48,233.40 × 28,721.20
  4. Step 4: Simplify right side
    32,220.40x = 1,385,321,128.08
  5. Step 5: Solve for x
    x = 1,385,321,128.08/32,220.40
  6. Step 6: Final answer
    x = 42,995.16

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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.