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Finding the Fourth Proportional to 25,495.20, 38,242.80 and 17,200.80

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Solution

The fourth proportional to 25,495.20, 38,242.80 and 17,200.80 is: 25,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,495.20 : 38,242.80 = 17,200.80 : x
  2. Step 2: Convert to fraction form
    25,495.20/38,242.80 = 17,200.80/x
  3. Step 3: Cross multiply
    25,495.20x = 38,242.80 × 17,200.80
  4. Step 4: Simplify right side
    25,495.20x = 657,806,754.24
  5. Step 5: Solve for x
    x = 657,806,754.24/25,495.20
  6. Step 6: Final answer
    x = 25,801.20

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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.