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Finding the Fourth Proportional to 29,028.08, 43,542.12 and 7,140.08

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Solution

The fourth proportional to 29,028.08, 43,542.12 and 7,140.08 is: 10,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,028.08 : 43,542.12 = 7,140.08 : x
  2. Step 2: Convert to fraction form
    29,028.08/43,542.12 = 7,140.08/x
  3. Step 3: Cross multiply
    29,028.08x = 43,542.12 × 7,140.08
  4. Step 4: Simplify right side
    29,028.08x = 310,894,220.17
  5. Step 5: Solve for x
    x = 310,894,220.17/29,028.08
  6. Step 6: Final answer
    x = 10,710.12

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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.