Home / 28,241.64-38,974.18-15,666.60

Finding the Fourth Proportional to 28,241.64, 38,974.18 and 15,666.60

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Solution

The fourth proportional to 28,241.64, 38,974.18 and 15,666.60 is: 21,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.64 : 38,974.18 = 15,666.60 : x
  2. Step 2: Convert to fraction form
    28,241.64/38,974.18 = 15,666.60/x
  3. Step 3: Cross multiply
    28,241.64x = 38,974.18 × 15,666.60
  4. Step 4: Simplify right side
    28,241.64x = 610,592,888.39
  5. Step 5: Solve for x
    x = 610,592,888.39/28,241.64
  6. Step 6: Final answer
    x = 21,620.31

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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.