Home / 29,480.20-40,613.48-20,512.28

Finding the Fourth Proportional to 29,480.20, 40,613.48 and 20,512.28

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Solution

The fourth proportional to 29,480.20, 40,613.48 and 20,512.28 is: 28,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,480.20 : 40,613.48 = 20,512.28 : x
  2. Step 2: Convert to fraction form
    29,480.20/40,613.48 = 20,512.28/x
  3. Step 3: Cross multiply
    29,480.20x = 40,613.48 × 20,512.28
  4. Step 4: Simplify right side
    29,480.20x = 833,075,073.53
  5. Step 5: Solve for x
    x = 833,075,073.53/29,480.20
  6. Step 6: Final answer
    x = 28,258.80

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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.