Home / 19,401.60-26,745.96-15,424.32

Finding the Fourth Proportional to 19,401.60, 26,745.96 and 15,424.32

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Solution

The fourth proportional to 19,401.60, 26,745.96 and 15,424.32 is: 21,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.60 : 26,745.96 = 15,424.32 : x
  2. Step 2: Convert to fraction form
    19,401.60/26,745.96 = 15,424.32/x
  3. Step 3: Cross multiply
    19,401.60x = 26,745.96 × 15,424.32
  4. Step 4: Simplify right side
    19,401.60x = 412,538,245.75
  5. Step 5: Solve for x
    x = 412,538,245.75/19,401.60
  6. Step 6: Final answer
    x = 21,263.10

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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.