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Finding the Fourth Proportional to 38,224.80, 57,223.80 and 28,407.60

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Solution

The fourth proportional to 38,224.80, 57,223.80 and 28,407.60 is: 42,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,224.80 : 57,223.80 = 28,407.60 : x
  2. Step 2: Convert to fraction form
    38,224.80/57,223.80 = 28,407.60/x
  3. Step 3: Cross multiply
    38,224.80x = 57,223.80 × 28,407.60
  4. Step 4: Simplify right side
    38,224.80x = 1,625,590,820.88
  5. Step 5: Solve for x
    x = 1,625,590,820.88/38,224.80
  6. Step 6: Final answer
    x = 42,527.12

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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.