Home / 21,887.48-32,819.88-13,006.64

Finding the Fourth Proportional to 21,887.48, 32,819.88 and 13,006.64

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Solution

The fourth proportional to 21,887.48, 32,819.88 and 13,006.64 is: 19,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.48 : 32,819.88 = 13,006.64 : x
  2. Step 2: Convert to fraction form
    21,887.48/32,819.88 = 13,006.64/x
  3. Step 3: Cross multiply
    21,887.48x = 32,819.88 × 13,006.64
  4. Step 4: Simplify right side
    21,887.48x = 426,876,364.00
  5. Step 5: Solve for x
    x = 426,876,364.00/21,887.48
  6. Step 6: Final answer
    x = 19,503.22

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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.