Home / 30,724.60-42,400.04-17,296.06

Finding the Fourth Proportional to 30,724.60, 42,400.04 and 17,296.06

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Solution

The fourth proportional to 30,724.60, 42,400.04 and 17,296.06 is: 23,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.60 : 42,400.04 = 17,296.06 : x
  2. Step 2: Convert to fraction form
    30,724.60/42,400.04 = 17,296.06/x
  3. Step 3: Cross multiply
    30,724.60x = 42,400.04 × 17,296.06
  4. Step 4: Simplify right side
    30,724.60x = 733,353,443.36
  5. Step 5: Solve for x
    x = 733,353,443.36/30,724.60
  6. Step 6: Final answer
    x = 23,868.61

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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.