Home / 20,316.86-30,462.96-13,288.38

Finding the Fourth Proportional to 20,316.86, 30,462.96 and 13,288.38

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Solution

The fourth proportional to 20,316.86, 30,462.96 and 13,288.38 is: 19,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.86 : 30,462.96 = 13,288.38 : x
  2. Step 2: Convert to fraction form
    20,316.86/30,462.96 = 13,288.38/x
  3. Step 3: Cross multiply
    20,316.86x = 30,462.96 × 13,288.38
  4. Step 4: Simplify right side
    20,316.86x = 404,803,388.40
  5. Step 5: Solve for x
    x = 404,803,388.40/20,316.86
  6. Step 6: Final answer
    x = 19,924.51

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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.