Home / 20,322.77-30,485.97-5,531.76

Finding the Fourth Proportional to 20,322.77, 30,485.97 and 5,531.76

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Solution

The fourth proportional to 20,322.77, 30,485.97 and 5,531.76 is: 8,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.77 : 30,485.97 = 5,531.76 : x
  2. Step 2: Convert to fraction form
    20,322.77/30,485.97 = 5,531.76/x
  3. Step 3: Cross multiply
    20,322.77x = 30,485.97 × 5,531.76
  4. Step 4: Simplify right side
    20,322.77x = 168,641,069.41
  5. Step 5: Solve for x
    x = 168,641,069.41/20,322.77
  6. Step 6: Final answer
    x = 8,298.14

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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.