Home / 73,022.21-109,533.54-20,432.15

Finding the Fourth Proportional to 73,022.21, 109,533.54 and 20,432.15

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Solution

The fourth proportional to 73,022.21, 109,533.54 and 20,432.15 is: 30,648.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,022.21 : 109,533.54 = 20,432.15 : x
  2. Step 2: Convert to fraction form
    73,022.21/109,533.54 = 20,432.15/x
  3. Step 3: Cross multiply
    73,022.21x = 109,533.54 × 20,432.15
  4. Step 4: Simplify right side
    73,022.21x = 2,238,005,719.31
  5. Step 5: Solve for x
    x = 2,238,005,719.31/73,022.21
  6. Step 6: Final answer
    x = 30,648.29

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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.