Home / 21,561.77-32,342.79-7,521.73

Finding the Fourth Proportional to 21,561.77, 32,342.79 and 7,521.73

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Solution

The fourth proportional to 21,561.77, 32,342.79 and 7,521.73 is: 11,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.77 : 32,342.79 = 7,521.73 : x
  2. Step 2: Convert to fraction form
    21,561.77/32,342.79 = 7,521.73/x
  3. Step 3: Cross multiply
    21,561.77x = 32,342.79 × 7,521.73
  4. Step 4: Simplify right side
    21,561.77x = 243,273,696.22
  5. Step 5: Solve for x
    x = 243,273,696.22/21,561.77
  6. Step 6: Final answer
    x = 11,282.64

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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.