Home / 21,155.58-31,733.60-10,063.40

Finding the Fourth Proportional to 21,155.58, 31,733.60 and 10,063.40

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Solution

The fourth proportional to 21,155.58, 31,733.60 and 10,063.40 is: 15,095.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.58 : 31,733.60 = 10,063.40 : x
  2. Step 2: Convert to fraction form
    21,155.58/31,733.60 = 10,063.40/x
  3. Step 3: Cross multiply
    21,155.58x = 31,733.60 × 10,063.40
  4. Step 4: Simplify right side
    21,155.58x = 319,347,910.24
  5. Step 5: Solve for x
    x = 319,347,910.24/21,155.58
  6. Step 6: Final answer
    x = 15,095.21

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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.