Home / 19,612.89-29,419.35-5,571.11

Finding the Fourth Proportional to 19,612.89, 29,419.35 and 5,571.11

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Solution

The fourth proportional to 19,612.89, 29,419.35 and 5,571.11 is: 8,356.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.89 : 29,419.35 = 5,571.11 : x
  2. Step 2: Convert to fraction form
    19,612.89/29,419.35 = 5,571.11/x
  3. Step 3: Cross multiply
    19,612.89x = 29,419.35 × 5,571.11
  4. Step 4: Simplify right side
    19,612.89x = 163,898,287.88
  5. Step 5: Solve for x
    x = 163,898,287.88/19,612.89
  6. Step 6: Final answer
    x = 8,356.66

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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.