Home / 20,330.36-30,495.30-5,539.16

Finding the Fourth Proportional to 20,330.36, 30,495.30 and 5,539.16

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Solution

The fourth proportional to 20,330.36, 30,495.30 and 5,539.16 is: 8,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.36 : 30,495.30 = 5,539.16 : x
  2. Step 2: Convert to fraction form
    20,330.36/30,495.30 = 5,539.16/x
  3. Step 3: Cross multiply
    20,330.36x = 30,495.30 × 5,539.16
  4. Step 4: Simplify right side
    20,330.36x = 168,918,345.95
  5. Step 5: Solve for x
    x = 168,918,345.95/20,330.36
  6. Step 6: Final answer
    x = 8,308.67

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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.