Home / 40,940.16-61,410.24-13,240.32

Finding the Fourth Proportional to 40,940.16, 61,410.24 and 13,240.32

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Solution

The fourth proportional to 40,940.16, 61,410.24 and 13,240.32 is: 19,860.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940.16 : 61,410.24 = 13,240.32 : x
  2. Step 2: Convert to fraction form
    40,940.16/61,410.24 = 13,240.32/x
  3. Step 3: Cross multiply
    40,940.16x = 61,410.24 × 13,240.32
  4. Step 4: Simplify right side
    40,940.16x = 813,091,228.88
  5. Step 5: Solve for x
    x = 813,091,228.88/40,940.16
  6. Step 6: Final answer
    x = 19,860.48

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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.