Home / 29,138.02-40,209.48-16,391.45

Finding the Fourth Proportional to 29,138.02, 40,209.48 and 16,391.45

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Solution

The fourth proportional to 29,138.02, 40,209.48 and 16,391.45 is: 22,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.02 : 40,209.48 = 16,391.45 : x
  2. Step 2: Convert to fraction form
    29,138.02/40,209.48 = 16,391.45/x
  3. Step 3: Cross multiply
    29,138.02x = 40,209.48 × 16,391.45
  4. Step 4: Simplify right side
    29,138.02x = 659,091,781.47
  5. Step 5: Solve for x
    x = 659,091,781.47/29,138.02
  6. Step 6: Final answer
    x = 22,619.65

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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.