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Finding the Fourth Proportional to 35,487.40, 53,228.10 and 10,863.40

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Solution

The fourth proportional to 35,487.40, 53,228.10 and 10,863.40 is: 16,294.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.40 : 53,228.10 = 10,863.40 : x
  2. Step 2: Convert to fraction form
    35,487.40/53,228.10 = 10,863.40/x
  3. Step 3: Cross multiply
    35,487.40x = 53,228.10 × 10,863.40
  4. Step 4: Simplify right side
    35,487.40x = 578,238,141.54
  5. Step 5: Solve for x
    x = 578,238,141.54/35,487.40
  6. Step 6: Final answer
    x = 16,294.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.