Home / 29,406.31-40,581.41-15,978.33

Finding the Fourth Proportional to 29,406.31, 40,581.41 and 15,978.33

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Solution

The fourth proportional to 29,406.31, 40,581.41 and 15,978.33 is: 22,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,406.31 : 40,581.41 = 15,978.33 : x
  2. Step 2: Convert to fraction form
    29,406.31/40,581.41 = 15,978.33/x
  3. Step 3: Cross multiply
    29,406.31x = 40,581.41 × 15,978.33
  4. Step 4: Simplify right side
    29,406.31x = 648,423,080.95
  5. Step 5: Solve for x
    x = 648,423,080.95/29,406.31
  6. Step 6: Final answer
    x = 22,050.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.