Home / 20,719.24-31,048.62-10,316.68

Finding the Fourth Proportional to 20,719.24, 31,048.62 and 10,316.68

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Solution

The fourth proportional to 20,719.24, 31,048.62 and 10,316.68 is: 15,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719.24 : 31,048.62 = 10,316.68 : x
  2. Step 2: Convert to fraction form
    20,719.24/31,048.62 = 10,316.68/x
  3. Step 3: Cross multiply
    20,719.24x = 31,048.62 × 10,316.68
  4. Step 4: Simplify right side
    20,719.24x = 320,318,676.98
  5. Step 5: Solve for x
    x = 320,318,676.98/20,719.24
  6. Step 6: Final answer
    x = 15,459.96

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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.