Home / 21,678.03-32,516.88-11,151

Finding the Fourth Proportional to 21,678.03, 32,516.88 and 11,151

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Solution

The fourth proportional to 21,678.03, 32,516.88 and 11,151 is: 16,726.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.03 : 32,516.88 = 11,151 : x
  2. Step 2: Convert to fraction form
    21,678.03/32,516.88 = 11,151/x
  3. Step 3: Cross multiply
    21,678.03x = 32,516.88 × 11,151
  4. Step 4: Simplify right side
    21,678.03x = 362,595,687.06
  5. Step 5: Solve for x
    x = 362,595,687.06/21,678.03
  6. Step 6: Final answer
    x = 16,726.41

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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.