Home / 40,900.21-61,350.21-12,822.40

Finding the Fourth Proportional to 40,900.21, 61,350.21 and 12,822.40

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Solution

The fourth proportional to 40,900.21, 61,350.21 and 12,822.40 is: 19,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.21 : 61,350.21 = 12,822.40 : x
  2. Step 2: Convert to fraction form
    40,900.21/61,350.21 = 12,822.40/x
  3. Step 3: Cross multiply
    40,900.21x = 61,350.21 × 12,822.40
  4. Step 4: Simplify right side
    40,900.21x = 786,656,932.70
  5. Step 5: Solve for x
    x = 786,656,932.70/40,900.21
  6. Step 6: Final answer
    x = 19,233.57

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1.5x scale

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.