Home / 21,155.76-31,733.88-10,063.52

Finding the Fourth Proportional to 21,155.76, 31,733.88 and 10,063.52

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Solution

The fourth proportional to 21,155.76, 31,733.88 and 10,063.52 is: 15,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.76 : 31,733.88 = 10,063.52 : x
  2. Step 2: Convert to fraction form
    21,155.76/31,733.88 = 10,063.52/x
  3. Step 3: Cross multiply
    21,155.76x = 31,733.88 × 10,063.52
  4. Step 4: Simplify right side
    21,155.76x = 319,354,536.06
  5. Step 5: Solve for x
    x = 319,354,536.06/21,155.76
  6. Step 6: Final answer
    x = 15,095.39

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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.