Home / 21,602.74-32,330.94-13,288.02

Finding the Fourth Proportional to 21,602.74, 32,330.94 and 13,288.02

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Solution

The fourth proportional to 21,602.74, 32,330.94 and 13,288.02 is: 19,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.74 : 32,330.94 = 13,288.02 : x
  2. Step 2: Convert to fraction form
    21,602.74/32,330.94 = 13,288.02/x
  3. Step 3: Cross multiply
    21,602.74x = 32,330.94 × 13,288.02
  4. Step 4: Simplify right side
    21,602.74x = 429,614,177.34
  5. Step 5: Solve for x
    x = 429,614,177.34/21,602.74
  6. Step 6: Final answer
    x = 19,887.02

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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.