Home / 26,871.60-40,307.40-15,207.60

Finding the Fourth Proportional to 26,871.60, 40,307.40 and 15,207.60

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Solution

The fourth proportional to 26,871.60, 40,307.40 and 15,207.60 is: 22,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,871.60 : 40,307.40 = 15,207.60 : x
  2. Step 2: Convert to fraction form
    26,871.60/40,307.40 = 15,207.60/x
  3. Step 3: Cross multiply
    26,871.60x = 40,307.40 × 15,207.60
  4. Step 4: Simplify right side
    26,871.60x = 612,978,816.24
  5. Step 5: Solve for x
    x = 612,978,816.24/26,871.60
  6. Step 6: Final answer
    x = 22,811.40

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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.