Home / 15,500.17-21,370.44-10,039.60

Finding the Fourth Proportional to 15,500.17, 21,370.44 and 10,039.60

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Solution

The fourth proportional to 15,500.17, 21,370.44 and 10,039.60 is: 13,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500.17 : 21,370.44 = 10,039.60 : x
  2. Step 2: Convert to fraction form
    15,500.17/21,370.44 = 10,039.60/x
  3. Step 3: Cross multiply
    15,500.17x = 21,370.44 × 10,039.60
  4. Step 4: Simplify right side
    15,500.17x = 214,550,669.42
  5. Step 5: Solve for x
    x = 214,550,669.42/15,500.17
  6. Step 6: Final answer
    x = 13,841.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.