Home / 37,331.84-51,519-21,419.12

Finding the Fourth Proportional to 37,331.84, 51,519 and 21,419.12

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Solution

The fourth proportional to 37,331.84, 51,519 and 21,419.12 is: 29,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,331.84 : 51,519 = 21,419.12 : x
  2. Step 2: Convert to fraction form
    37,331.84/51,519 = 21,419.12/x
  3. Step 3: Cross multiply
    37,331.84x = 51,519 × 21,419.12
  4. Step 4: Simplify right side
    37,331.84x = 1,103,491,643.28
  5. Step 5: Solve for x
    x = 1,103,491,643.28/37,331.84
  6. Step 6: Final answer
    x = 29,558.99

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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.