Home / 29,019.17-43,454.79-19,128.45

Finding the Fourth Proportional to 29,019.17, 43,454.79 and 19,128.45

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Solution

The fourth proportional to 29,019.17, 43,454.79 and 19,128.45 is: 28,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,019.17 : 43,454.79 = 19,128.45 : x
  2. Step 2: Convert to fraction form
    29,019.17/43,454.79 = 19,128.45/x
  3. Step 3: Cross multiply
    29,019.17x = 43,454.79 × 19,128.45
  4. Step 4: Simplify right side
    29,019.17x = 831,222,777.78
  5. Step 5: Solve for x
    x = 831,222,777.78/29,019.17
  6. Step 6: Final answer
    x = 28,643.92

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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.