Home / 42,241.64-63,374.43-21,156.22

Finding the Fourth Proportional to 42,241.64, 63,374.43 and 21,156.22

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Solution

The fourth proportional to 42,241.64, 63,374.43 and 21,156.22 is: 31,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,241.64 : 63,374.43 = 21,156.22 : x
  2. Step 2: Convert to fraction form
    42,241.64/63,374.43 = 21,156.22/x
  3. Step 3: Cross multiply
    42,241.64x = 63,374.43 × 21,156.22
  4. Step 4: Simplify right side
    42,241.64x = 1,340,763,066.58
  5. Step 5: Solve for x
    x = 1,340,763,066.58/42,241.64
  6. Step 6: Final answer
    x = 31,740.32

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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.