Home / 21,322.76-31,984.14-10,927.88

Finding the Fourth Proportional to 21,322.76, 31,984.14 and 10,927.88

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Solution

The fourth proportional to 21,322.76, 31,984.14 and 10,927.88 is: 16,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.76 : 31,984.14 = 10,927.88 : x
  2. Step 2: Convert to fraction form
    21,322.76/31,984.14 = 10,927.88/x
  3. Step 3: Cross multiply
    21,322.76x = 31,984.14 × 10,927.88
  4. Step 4: Simplify right side
    21,322.76x = 349,518,843.82
  5. Step 5: Solve for x
    x = 349,518,843.82/21,322.76
  6. Step 6: Final answer
    x = 16,391.82

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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.