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Finding the Fourth Proportional to 39,714.82, 54,807.42 and 21,566.32

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Solution

The fourth proportional to 39,714.82, 54,807.42 and 21,566.32 is: 29,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,714.82 : 54,807.42 = 21,566.32 : x
  2. Step 2: Convert to fraction form
    39,714.82/54,807.42 = 21,566.32/x
  3. Step 3: Cross multiply
    39,714.82x = 54,807.42 × 21,566.32
  4. Step 4: Simplify right side
    39,714.82x = 1,181,994,358.09
  5. Step 5: Solve for x
    x = 1,181,994,358.09/39,714.82
  6. Step 6: Final answer
    x = 29,762.05

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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.