Home / 43,612.20-65,418.30-28,837.80

Finding the Fourth Proportional to 43,612.20, 65,418.30 and 28,837.80

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Solution

The fourth proportional to 43,612.20, 65,418.30 and 28,837.80 is: 43,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,612.20 : 65,418.30 = 28,837.80 : x
  2. Step 2: Convert to fraction form
    43,612.20/65,418.30 = 28,837.80/x
  3. Step 3: Cross multiply
    43,612.20x = 65,418.30 × 28,837.80
  4. Step 4: Simplify right side
    43,612.20x = 1,886,519,851.74
  5. Step 5: Solve for x
    x = 1,886,519,851.74/43,612.20
  6. Step 6: Final answer
    x = 43,256.70

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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.