Home / 21,972.12-30,326.52-17,182.62

Finding the Fourth Proportional to 21,972.12, 30,326.52 and 17,182.62

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Solution

The fourth proportional to 21,972.12, 30,326.52 and 17,182.62 is: 23,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.12 : 30,326.52 = 17,182.62 : x
  2. Step 2: Convert to fraction form
    21,972.12/30,326.52 = 17,182.62/x
  3. Step 3: Cross multiply
    21,972.12x = 30,326.52 × 17,182.62
  4. Step 4: Simplify right side
    21,972.12x = 521,089,069.08
  5. Step 5: Solve for x
    x = 521,089,069.08/21,972.12
  6. Step 6: Final answer
    x = 23,715.92

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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.