Home / 23,155.20-31,910.40-22,809.60

Finding the Fourth Proportional to 23,155.20, 31,910.40 and 22,809.60

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Solution

The fourth proportional to 23,155.20, 31,910.40 and 22,809.60 is: 31,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,155.20 : 31,910.40 = 22,809.60 : x
  2. Step 2: Convert to fraction form
    23,155.20/31,910.40 = 22,809.60/x
  3. Step 3: Cross multiply
    23,155.20x = 31,910.40 × 22,809.60
  4. Step 4: Simplify right side
    23,155.20x = 727,863,459.84
  5. Step 5: Solve for x
    x = 727,863,459.84/23,155.20
  6. Step 6: Final answer
    x = 31,434.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.