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Finding the Fourth Proportional to 25,851.60, 38,712.60 and 17,038.80

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Solution

The fourth proportional to 25,851.60, 38,712.60 and 17,038.80 is: 25,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,851.60 : 38,712.60 = 17,038.80 : x
  2. Step 2: Convert to fraction form
    25,851.60/38,712.60 = 17,038.80/x
  3. Step 3: Cross multiply
    25,851.60x = 38,712.60 × 17,038.80
  4. Step 4: Simplify right side
    25,851.60x = 659,616,248.88
  5. Step 5: Solve for x
    x = 659,616,248.88/25,851.60
  6. Step 6: Final answer
    x = 25,515.49

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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.