Home / 18,015.20-24,860.40-10,057.28

Finding the Fourth Proportional to 18,015.20, 24,860.40 and 10,057.28

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Solution

The fourth proportional to 18,015.20, 24,860.40 and 10,057.28 is: 13,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.20 : 24,860.40 = 10,057.28 : x
  2. Step 2: Convert to fraction form
    18,015.20/24,860.40 = 10,057.28/x
  3. Step 3: Cross multiply
    18,015.20x = 24,860.40 × 10,057.28
  4. Step 4: Simplify right side
    18,015.20x = 250,028,003.71
  5. Step 5: Solve for x
    x = 250,028,003.71/18,015.20
  6. Step 6: Final answer
    x = 13,878.72

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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.