Home / 39,714.64-54,807.12-22,720.48

Finding the Fourth Proportional to 39,714.64, 54,807.12 and 22,720.48

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Solution

The fourth proportional to 39,714.64, 54,807.12 and 22,720.48 is: 31,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,714.64 : 54,807.12 = 22,720.48 : x
  2. Step 2: Convert to fraction form
    39,714.64/54,807.12 = 22,720.48/x
  3. Step 3: Cross multiply
    39,714.64x = 54,807.12 × 22,720.48
  4. Step 4: Simplify right side
    39,714.64x = 1,245,244,073.82
  5. Step 5: Solve for x
    x = 1,245,244,073.82/39,714.64
  6. Step 6: Final answer
    x = 31,354.79

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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.