Home / 29,235.11-40,344.45-15,806.36

Finding the Fourth Proportional to 29,235.11, 40,344.45 and 15,806.36

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Solution

The fourth proportional to 29,235.11, 40,344.45 and 15,806.36 is: 21,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.11 : 40,344.45 = 15,806.36 : x
  2. Step 2: Convert to fraction form
    29,235.11/40,344.45 = 15,806.36/x
  3. Step 3: Cross multiply
    29,235.11x = 40,344.45 × 15,806.36
  4. Step 4: Simplify right side
    29,235.11x = 637,698,900.70
  5. Step 5: Solve for x
    x = 637,698,900.70/29,235.11
  6. Step 6: Final answer
    x = 21,812.78

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1.5x scale

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.