Home / 28,546.40-42,800.40-15,221.60

Finding the Fourth Proportional to 28,546.40, 42,800.40 and 15,221.60

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Solution

The fourth proportional to 28,546.40, 42,800.40 and 15,221.60 is: 22,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.40 : 42,800.40 = 15,221.60 : x
  2. Step 2: Convert to fraction form
    28,546.40/42,800.40 = 15,221.60/x
  3. Step 3: Cross multiply
    28,546.40x = 42,800.40 × 15,221.60
  4. Step 4: Simplify right side
    28,546.40x = 651,490,568.64
  5. Step 5: Solve for x
    x = 651,490,568.64/28,546.40
  6. Step 6: Final answer
    x = 22,822.16

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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.