Home / 39,940.64-59,910.95-13,645.61

Finding the Fourth Proportional to 39,940.64, 59,910.95 and 13,645.61

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Solution

The fourth proportional to 39,940.64, 59,910.95 and 13,645.61 is: 20,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.64 : 59,910.95 = 13,645.61 : x
  2. Step 2: Convert to fraction form
    39,940.64/59,910.95 = 13,645.61/x
  3. Step 3: Cross multiply
    39,940.64x = 59,910.95 × 13,645.61
  4. Step 4: Simplify right side
    39,940.64x = 817,521,090.65
  5. Step 5: Solve for x
    x = 817,521,090.65/39,940.64
  6. Step 6: Final answer
    x = 20,468.40

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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.