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Finding the Fourth Proportional to 18,029.28, 24,878.76 and 10,070.40

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Solution

The fourth proportional to 18,029.28, 24,878.76 and 10,070.40 is: 13,896.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,029.28 : 24,878.76 = 10,070.40 : x
  2. Step 2: Convert to fraction form
    18,029.28/24,878.76 = 10,070.40/x
  3. Step 3: Cross multiply
    18,029.28x = 24,878.76 × 10,070.40
  4. Step 4: Simplify right side
    18,029.28x = 250,539,064.70
  5. Step 5: Solve for x
    x = 250,539,064.70/18,029.28
  6. Step 6: Final answer
    x = 13,896.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.