Home / 30,889.52-42,626.04-19,571.12

Finding the Fourth Proportional to 30,889.52, 42,626.04 and 19,571.12

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Solution

The fourth proportional to 30,889.52, 42,626.04 and 19,571.12 is: 27,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.52 : 42,626.04 = 19,571.12 : x
  2. Step 2: Convert to fraction form
    30,889.52/42,626.04 = 19,571.12/x
  3. Step 3: Cross multiply
    30,889.52x = 42,626.04 × 19,571.12
  4. Step 4: Simplify right side
    30,889.52x = 834,239,343.96
  5. Step 5: Solve for x
    x = 834,239,343.96/30,889.52
  6. Step 6: Final answer
    x = 27,007.20

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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.