Home / 29,811.36-41,125.50-21,432.72

Finding the Fourth Proportional to 29,811.36, 41,125.50 and 21,432.72

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Solution

The fourth proportional to 29,811.36, 41,125.50 and 21,432.72 is: 29,566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,811.36 : 41,125.50 = 21,432.72 : x
  2. Step 2: Convert to fraction form
    29,811.36/41,125.50 = 21,432.72/x
  3. Step 3: Cross multiply
    29,811.36x = 41,125.50 × 21,432.72
  4. Step 4: Simplify right side
    29,811.36x = 881,431,326.36
  5. Step 5: Solve for x
    x = 881,431,326.36/29,811.36
  6. Step 6: Final answer
    x = 29,566.96

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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.