Home / 22,116.72-33,122.01-19,457.21

Finding the Fourth Proportional to 22,116.72, 33,122.01 and 19,457.21

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Solution

The fourth proportional to 22,116.72, 33,122.01 and 19,457.21 is: 29,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.72 : 33,122.01 = 19,457.21 : x
  2. Step 2: Convert to fraction form
    22,116.72/33,122.01 = 19,457.21/x
  3. Step 3: Cross multiply
    22,116.72x = 33,122.01 × 19,457.21
  4. Step 4: Simplify right side
    22,116.72x = 644,461,738.58
  5. Step 5: Solve for x
    x = 644,461,738.58/22,116.72
  6. Step 6: Final answer
    x = 29,139.12

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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.