Home / 29,220.46-43,900.72-18,711.04

Finding the Fourth Proportional to 29,220.46, 43,900.72 and 18,711.04

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Solution

The fourth proportional to 29,220.46, 43,900.72 and 18,711.04 is: 28,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220.46 : 43,900.72 = 18,711.04 : x
  2. Step 2: Convert to fraction form
    29,220.46/43,900.72 = 18,711.04/x
  3. Step 3: Cross multiply
    29,220.46x = 43,900.72 × 18,711.04
  4. Step 4: Simplify right side
    29,220.46x = 821,428,127.95
  5. Step 5: Solve for x
    x = 821,428,127.95/29,220.46
  6. Step 6: Final answer
    x = 28,111.40

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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.