Home / 20,645.48-30,970.27-6,601.98

Finding the Fourth Proportional to 20,645.48, 30,970.27 and 6,601.98

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Solution

The fourth proportional to 20,645.48, 30,970.27 and 6,601.98 is: 9,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.48 : 30,970.27 = 6,601.98 : x
  2. Step 2: Convert to fraction form
    20,645.48/30,970.27 = 6,601.98/x
  3. Step 3: Cross multiply
    20,645.48x = 30,970.27 × 6,601.98
  4. Step 4: Simplify right side
    20,645.48x = 204,465,158.99
  5. Step 5: Solve for x
    x = 204,465,158.99/20,645.48
  6. Step 6: Final answer
    x = 9,903.63

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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.