Home / 29,179.20-43,790.40-19,315.20

Finding the Fourth Proportional to 29,179.20, 43,790.40 and 19,315.20

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Solution

The fourth proportional to 29,179.20, 43,790.40 and 19,315.20 is: 28,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.20 : 43,790.40 = 19,315.20 : x
  2. Step 2: Convert to fraction form
    29,179.20/43,790.40 = 19,315.20/x
  3. Step 3: Cross multiply
    29,179.20x = 43,790.40 × 19,315.20
  4. Step 4: Simplify right side
    29,179.20x = 845,820,334.08
  5. Step 5: Solve for x
    x = 845,820,334.08/29,179.20
  6. Step 6: Final answer
    x = 28,987.10

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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.