Home / 45,257.40-67,795.50-21,588

Finding the Fourth Proportional to 45,257.40, 67,795.50 and 21,588

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Solution

The fourth proportional to 45,257.40, 67,795.50 and 21,588 is: 32,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,257.40 : 67,795.50 = 21,588 : x
  2. Step 2: Convert to fraction form
    45,257.40/67,795.50 = 21,588/x
  3. Step 3: Cross multiply
    45,257.40x = 67,795.50 × 21,588
  4. Step 4: Simplify right side
    45,257.40x = 1,463,569,254
  5. Step 5: Solve for x
    x = 1,463,569,254/45,257.40
  6. Step 6: Final answer
    x = 32,338.78

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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.