Home / 20,355.09-30,534.45-5,564.08

Finding the Fourth Proportional to 20,355.09, 30,534.45 and 5,564.08

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Solution

The fourth proportional to 20,355.09, 30,534.45 and 5,564.08 is: 8,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.09 : 30,534.45 = 5,564.08 : x
  2. Step 2: Convert to fraction form
    20,355.09/30,534.45 = 5,564.08/x
  3. Step 3: Cross multiply
    20,355.09x = 30,534.45 × 5,564.08
  4. Step 4: Simplify right side
    20,355.09x = 169,896,122.56
  5. Step 5: Solve for x
    x = 169,896,122.56/20,355.09
  6. Step 6: Final answer
    x = 8,346.62

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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.