Home / 42,420.08-63,533.20-20,249.04

Finding the Fourth Proportional to 42,420.08, 63,533.20 and 20,249.04

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Solution

The fourth proportional to 42,420.08, 63,533.20 and 20,249.04 is: 30,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,420.08 : 63,533.20 = 20,249.04 : x
  2. Step 2: Convert to fraction form
    42,420.08/63,533.20 = 20,249.04/x
  3. Step 3: Cross multiply
    42,420.08x = 63,533.20 × 20,249.04
  4. Step 4: Simplify right side
    42,420.08x = 1,286,486,308.13
  5. Step 5: Solve for x
    x = 1,286,486,308.13/42,420.08
  6. Step 6: Final answer
    x = 30,327.30

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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.