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Finding the Fourth Proportional to 36,408.60, 54,602.10 and 14,209.20

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Solution

The fourth proportional to 36,408.60, 54,602.10 and 14,209.20 is: 21,309.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,408.60 : 54,602.10 = 14,209.20 : x
  2. Step 2: Convert to fraction form
    36,408.60/54,602.10 = 14,209.20/x
  3. Step 3: Cross multiply
    36,408.60x = 54,602.10 × 14,209.20
  4. Step 4: Simplify right side
    36,408.60x = 775,852,159.32
  5. Step 5: Solve for x
    x = 775,852,159.32/36,408.60
  6. Step 6: Final answer
    x = 21,309.59

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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.