Home / 20,822.58-31,235.70-9,577.80

Finding the Fourth Proportional to 20,822.58, 31,235.70 and 9,577.80

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Solution

The fourth proportional to 20,822.58, 31,235.70 and 9,577.80 is: 14,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.58 : 31,235.70 = 9,577.80 : x
  2. Step 2: Convert to fraction form
    20,822.58/31,235.70 = 9,577.80/x
  3. Step 3: Cross multiply
    20,822.58x = 31,235.70 × 9,577.80
  4. Step 4: Simplify right side
    20,822.58x = 299,169,287.46
  5. Step 5: Solve for x
    x = 299,169,287.46/20,822.58
  6. Step 6: Final answer
    x = 14,367.54

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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.