Home / 40,266.12-60,378.53-21,300.99

Finding the Fourth Proportional to 40,266.12, 60,378.53 and 21,300.99

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Solution

The fourth proportional to 40,266.12, 60,378.53 and 21,300.99 is: 31,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,266.12 : 60,378.53 = 21,300.99 : x
  2. Step 2: Convert to fraction form
    40,266.12/60,378.53 = 21,300.99/x
  3. Step 3: Cross multiply
    40,266.12x = 60,378.53 × 21,300.99
  4. Step 4: Simplify right side
    40,266.12x = 1,286,122,357.24
  5. Step 5: Solve for x
    x = 1,286,122,357.24/40,266.12
  6. Step 6: Final answer
    x = 31,940.56

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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.