Home / 28,552.40-42,821.04-12,966.56

Finding the Fourth Proportional to 28,552.40, 42,821.04 and 12,966.56

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Solution

The fourth proportional to 28,552.40, 42,821.04 and 12,966.56 is: 19,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.40 : 42,821.04 = 12,966.56 : x
  2. Step 2: Convert to fraction form
    28,552.40/42,821.04 = 12,966.56/x
  3. Step 3: Cross multiply
    28,552.40x = 42,821.04 × 12,966.56
  4. Step 4: Simplify right side
    28,552.40x = 555,241,584.42
  5. Step 5: Solve for x
    x = 555,241,584.42/28,552.40
  6. Step 6: Final answer
    x = 19,446.41

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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.