Home / 26,989.60-40,465.20-10,343.20

Finding the Fourth Proportional to 26,989.60, 40,465.20 and 10,343.20

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Solution

The fourth proportional to 26,989.60, 40,465.20 and 10,343.20 is: 15,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,989.60 : 40,465.20 = 10,343.20 : x
  2. Step 2: Convert to fraction form
    26,989.60/40,465.20 = 10,343.20/x
  3. Step 3: Cross multiply
    26,989.60x = 40,465.20 × 10,343.20
  4. Step 4: Simplify right side
    26,989.60x = 418,539,656.64
  5. Step 5: Solve for x
    x = 418,539,656.64/26,989.60
  6. Step 6: Final answer
    x = 15,507.44

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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.