Home / 42,171.84-63,213.69-19,958.76

Finding the Fourth Proportional to 42,171.84, 63,213.69 and 19,958.76

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Solution

The fourth proportional to 42,171.84, 63,213.69 and 19,958.76 is: 29,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.84 : 63,213.69 = 19,958.76 : x
  2. Step 2: Convert to fraction form
    42,171.84/63,213.69 = 19,958.76/x
  3. Step 3: Cross multiply
    42,171.84x = 63,213.69 × 19,958.76
  4. Step 4: Simplify right side
    42,171.84x = 1,261,666,867.42
  5. Step 5: Solve for x
    x = 1,261,666,867.42/42,171.84
  6. Step 6: Final answer
    x = 29,917.28

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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.