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Finding the Fourth Proportional to 35,312.25, 48,735.23 and 20,408.25

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Solution

The fourth proportional to 35,312.25, 48,735.23 and 20,408.25 is: 28,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.25 : 48,735.23 = 20,408.25 : x
  2. Step 2: Convert to fraction form
    35,312.25/48,735.23 = 20,408.25/x
  3. Step 3: Cross multiply
    35,312.25x = 48,735.23 × 20,408.25
  4. Step 4: Simplify right side
    35,312.25x = 994,600,655.61
  5. Step 5: Solve for x
    x = 994,600,655.61/35,312.25
  6. Step 6: Final answer
    x = 28,165.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.