Home / 20,029.72-30,037.28-8,934.34

Finding the Fourth Proportional to 20,029.72, 30,037.28 and 8,934.34

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Solution

The fourth proportional to 20,029.72, 30,037.28 and 8,934.34 is: 13,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.72 : 30,037.28 = 8,934.34 : x
  2. Step 2: Convert to fraction form
    20,029.72/30,037.28 = 8,934.34/x
  3. Step 3: Cross multiply
    20,029.72x = 30,037.28 × 8,934.34
  4. Step 4: Simplify right side
    20,029.72x = 268,363,272.20
  5. Step 5: Solve for x
    x = 268,363,272.20/20,029.72
  6. Step 6: Final answer
    x = 13,398.25

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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.