Home / 42,993.32-64,497.56-13,403.79

Finding the Fourth Proportional to 42,993.32, 64,497.56 and 13,403.79

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Solution

The fourth proportional to 42,993.32, 64,497.56 and 13,403.79 is: 20,108.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,993.32 : 64,497.56 = 13,403.79 : x
  2. Step 2: Convert to fraction form
    42,993.32/64,497.56 = 13,403.79/x
  3. Step 3: Cross multiply
    42,993.32x = 64,497.56 × 13,403.79
  4. Step 4: Simplify right side
    42,993.32x = 864,511,682.73
  5. Step 5: Solve for x
    x = 864,511,682.73/42,993.32
  6. Step 6: Final answer
    x = 20,108.05

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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.