Home / 21,323.55-31,984.42-7,284.84

Finding the Fourth Proportional to 21,323.55, 31,984.42 and 7,284.84

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Solution

The fourth proportional to 21,323.55, 31,984.42 and 7,284.84 is: 10,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.55 : 31,984.42 = 7,284.84 : x
  2. Step 2: Convert to fraction form
    21,323.55/31,984.42 = 7,284.84/x
  3. Step 3: Cross multiply
    21,323.55x = 31,984.42 × 7,284.84
  4. Step 4: Simplify right side
    21,323.55x = 233,001,382.19
  5. Step 5: Solve for x
    x = 233,001,382.19/21,323.55
  6. Step 6: Final answer
    x = 10,926.95

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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.