Home / 29,132.49-40,209.48-20,625.78

Finding the Fourth Proportional to 29,132.49, 40,209.48 and 20,625.78

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Solution

The fourth proportional to 29,132.49, 40,209.48 and 20,625.78 is: 28,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,132.49 : 40,209.48 = 20,625.78 : x
  2. Step 2: Convert to fraction form
    29,132.49/40,209.48 = 20,625.78/x
  3. Step 3: Cross multiply
    29,132.49x = 40,209.48 × 20,625.78
  4. Step 4: Simplify right side
    29,132.49x = 829,351,888.39
  5. Step 5: Solve for x
    x = 829,351,888.39/29,132.49
  6. Step 6: Final answer
    x = 28,468.28

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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.