Home / 40,916.40-61,363.80-12,836.40

Finding the Fourth Proportional to 40,916.40, 61,363.80 and 12,836.40

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Solution

The fourth proportional to 40,916.40, 61,363.80 and 12,836.40 is: 19,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,916.40 : 61,363.80 = 12,836.40 : x
  2. Step 2: Convert to fraction form
    40,916.40/61,363.80 = 12,836.40/x
  3. Step 3: Cross multiply
    40,916.40x = 61,363.80 × 12,836.40
  4. Step 4: Simplify right side
    40,916.40x = 787,690,282.32
  5. Step 5: Solve for x
    x = 787,690,282.32/40,916.40
  6. Step 6: Final answer
    x = 19,251.21

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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.