Home / 28,436.12-42,654.42-10,901.78

Finding the Fourth Proportional to 28,436.12, 42,654.42 and 10,901.78

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Solution

The fourth proportional to 28,436.12, 42,654.42 and 10,901.78 is: 16,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.12 : 42,654.42 = 10,901.78 : x
  2. Step 2: Convert to fraction form
    28,436.12/42,654.42 = 10,901.78/x
  3. Step 3: Cross multiply
    28,436.12x = 42,654.42 × 10,901.78
  4. Step 4: Simplify right side
    28,436.12x = 465,009,102.87
  5. Step 5: Solve for x
    x = 465,009,102.87/28,436.12
  6. Step 6: Final answer
    x = 16,352.76

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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.