Home / 28,434.80-42,652.20-22,559.60

Finding the Fourth Proportional to 28,434.80, 42,652.20 and 22,559.60

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Solution

The fourth proportional to 28,434.80, 42,652.20 and 22,559.60 is: 33,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.80 : 42,652.20 = 22,559.60 : x
  2. Step 2: Convert to fraction form
    28,434.80/42,652.20 = 22,559.60/x
  3. Step 3: Cross multiply
    28,434.80x = 42,652.20 × 22,559.60
  4. Step 4: Simplify right side
    28,434.80x = 962,216,571.12
  5. Step 5: Solve for x
    x = 962,216,571.12/28,434.80
  6. Step 6: Final answer
    x = 33,839.40

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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.