Home / 21,322.06-31,981.95-6,530.99

Finding the Fourth Proportional to 21,322.06, 31,981.95 and 6,530.99

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Solution

The fourth proportional to 21,322.06, 31,981.95 and 6,530.99 is: 9,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.06 : 31,981.95 = 6,530.99 : x
  2. Step 2: Convert to fraction form
    21,322.06/31,981.95 = 6,530.99/x
  3. Step 3: Cross multiply
    21,322.06x = 31,981.95 × 6,530.99
  4. Step 4: Simplify right side
    21,322.06x = 208,873,635.72
  5. Step 5: Solve for x
    x = 208,873,635.72/21,322.06
  6. Step 6: Final answer
    x = 9,796.13

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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.