Home / 42,912.70-64,376.51-14,446.95

Finding the Fourth Proportional to 42,912.70, 64,376.51 and 14,446.95

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Solution

The fourth proportional to 42,912.70, 64,376.51 and 14,446.95 is: 21,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,912.70 : 64,376.51 = 14,446.95 : x
  2. Step 2: Convert to fraction form
    42,912.70/64,376.51 = 14,446.95/x
  3. Step 3: Cross multiply
    42,912.70x = 64,376.51 × 14,446.95
  4. Step 4: Simplify right side
    42,912.70x = 930,044,221.14
  5. Step 5: Solve for x
    x = 930,044,221.14/42,912.70
  6. Step 6: Final answer
    x = 21,672.94

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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.