Home / 40,893.50-61,340.15-12,815.70

Finding the Fourth Proportional to 40,893.50, 61,340.15 and 12,815.70

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Solution

The fourth proportional to 40,893.50, 61,340.15 and 12,815.70 is: 19,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,893.50 : 61,340.15 = 12,815.70 : x
  2. Step 2: Convert to fraction form
    40,893.50/61,340.15 = 12,815.70/x
  3. Step 3: Cross multiply
    40,893.50x = 61,340.15 × 12,815.70
  4. Step 4: Simplify right side
    40,893.50x = 786,116,960.36
  5. Step 5: Solve for x
    x = 786,116,960.36/40,893.50
  6. Step 6: Final answer
    x = 19,223.52

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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.