Home / 10,421.46-15,630.28-2,822.89

Finding the Fourth Proportional to 10,421.46, 15,630.28 and 2,822.89

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Solution

The fourth proportional to 10,421.46, 15,630.28 and 2,822.89 is: 4,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.46 : 15,630.28 = 2,822.89 : x
  2. Step 2: Convert to fraction form
    10,421.46/15,630.28 = 2,822.89/x
  3. Step 3: Cross multiply
    10,421.46x = 15,630.28 × 2,822.89
  4. Step 4: Simplify right side
    10,421.46x = 44,122,561.11
  5. Step 5: Solve for x
    x = 44,122,561.11/10,421.46
  6. Step 6: Final answer
    x = 4,233.82

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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.