Home / 40,954.31-61,431.41-12,876.82

Finding the Fourth Proportional to 40,954.31, 61,431.41 and 12,876.82

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Solution

The fourth proportional to 40,954.31, 61,431.41 and 12,876.82 is: 19,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,954.31 : 61,431.41 = 12,876.82 : x
  2. Step 2: Convert to fraction form
    40,954.31/61,431.41 = 12,876.82/x
  3. Step 3: Cross multiply
    40,954.31x = 61,431.41 × 12,876.82
  4. Step 4: Simplify right side
    40,954.31x = 791,041,087.53
  5. Step 5: Solve for x
    x = 791,041,087.53/40,954.31
  6. Step 6: Final answer
    x = 19,315.21

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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.