Home / 28,436.10-42,654.15-15,270.36

Finding the Fourth Proportional to 28,436.10, 42,654.15 and 15,270.36

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Solution

The fourth proportional to 28,436.10, 42,654.15 and 15,270.36 is: 22,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.10 : 42,654.15 = 15,270.36 : x
  2. Step 2: Convert to fraction form
    28,436.10/42,654.15 = 15,270.36/x
  3. Step 3: Cross multiply
    28,436.10x = 42,654.15 × 15,270.36
  4. Step 4: Simplify right side
    28,436.10x = 651,344,149.64
  5. Step 5: Solve for x
    x = 651,344,149.64/28,436.10
  6. Step 6: Final answer
    x = 22,905.54

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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.