Home / 31,098-42,915.20-16,950.84

Finding the Fourth Proportional to 31,098, 42,915.20 and 16,950.84

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Solution

The fourth proportional to 31,098, 42,915.20 and 16,950.84 is: 23,392.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098 : 42,915.20 = 16,950.84 : x
  2. Step 2: Convert to fraction form
    31,098/42,915.20 = 16,950.84/x
  3. Step 3: Cross multiply
    31,098x = 42,915.20 × 16,950.84
  4. Step 4: Simplify right side
    31,098x = 727,448,688.77
  5. Step 5: Solve for x
    x = 727,448,688.77/31,098
  6. Step 6: Final answer
    x = 23,392.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.