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Finding the Fourth Proportional to 28,014.48, 42,022.80 and 10,482.48

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Solution

The fourth proportional to 28,014.48, 42,022.80 and 10,482.48 is: 15,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.48 : 42,022.80 = 10,482.48 : x
  2. Step 2: Convert to fraction form
    28,014.48/42,022.80 = 10,482.48/x
  3. Step 3: Cross multiply
    28,014.48x = 42,022.80 × 10,482.48
  4. Step 4: Simplify right side
    28,014.48x = 440,503,160.54
  5. Step 5: Solve for x
    x = 440,503,160.54/28,014.48
  6. Step 6: Final answer
    x = 15,724.12

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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.