Home / 39,765.72-54,878.16-23,847.12

Finding the Fourth Proportional to 39,765.72, 54,878.16 and 23,847.12

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Solution

The fourth proportional to 39,765.72, 54,878.16 and 23,847.12 is: 32,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.72 : 54,878.16 = 23,847.12 : x
  2. Step 2: Convert to fraction form
    39,765.72/54,878.16 = 23,847.12/x
  3. Step 3: Cross multiply
    39,765.72x = 54,878.16 × 23,847.12
  4. Step 4: Simplify right side
    39,765.72x = 1,308,686,066.90
  5. Step 5: Solve for x
    x = 1,308,686,066.90/39,765.72
  6. Step 6: Final answer
    x = 32,909.90

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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.