Home / 29,671.28-40,979.96-20,223.44

Finding the Fourth Proportional to 29,671.28, 40,979.96 and 20,223.44

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Solution

The fourth proportional to 29,671.28, 40,979.96 and 20,223.44 is: 27,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.28 : 40,979.96 = 20,223.44 : x
  2. Step 2: Convert to fraction form
    29,671.28/40,979.96 = 20,223.44/x
  3. Step 3: Cross multiply
    29,671.28x = 40,979.96 × 20,223.44
  4. Step 4: Simplify right side
    29,671.28x = 828,755,762.26
  5. Step 5: Solve for x
    x = 828,755,762.26/29,671.28
  6. Step 6: Final answer
    x = 27,931.24

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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.