Home / 40,639.40-60,960.70-14,340.36

Finding the Fourth Proportional to 40,639.40, 60,960.70 and 14,340.36

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Solution

The fourth proportional to 40,639.40, 60,960.70 and 14,340.36 is: 21,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639.40 : 60,960.70 = 14,340.36 : x
  2. Step 2: Convert to fraction form
    40,639.40/60,960.70 = 14,340.36/x
  3. Step 3: Cross multiply
    40,639.40x = 60,960.70 × 14,340.36
  4. Step 4: Simplify right side
    40,639.40x = 874,198,383.85
  5. Step 5: Solve for x
    x = 874,198,383.85/40,639.40
  6. Step 6: Final answer
    x = 21,511.10

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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.