Home / 20,454.15-30,681.26-5,663.11

Finding the Fourth Proportional to 20,454.15, 30,681.26 and 5,663.11

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Solution

The fourth proportional to 20,454.15, 30,681.26 and 5,663.11 is: 8,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.15 : 30,681.26 = 5,663.11 : x
  2. Step 2: Convert to fraction form
    20,454.15/30,681.26 = 5,663.11/x
  3. Step 3: Cross multiply
    20,454.15x = 30,681.26 × 5,663.11
  4. Step 4: Simplify right side
    20,454.15x = 173,751,350.32
  5. Step 5: Solve for x
    x = 173,751,350.32/20,454.15
  6. Step 6: Final answer
    x = 8,494.67

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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.