Home / 39,915.30-55,082.43-22,012.02

Finding the Fourth Proportional to 39,915.30, 55,082.43 and 22,012.02

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Solution

The fourth proportional to 39,915.30, 55,082.43 and 22,012.02 is: 30,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.30 : 55,082.43 = 22,012.02 : x
  2. Step 2: Convert to fraction form
    39,915.30/55,082.43 = 22,012.02/x
  3. Step 3: Cross multiply
    39,915.30x = 55,082.43 × 22,012.02
  4. Step 4: Simplify right side
    39,915.30x = 1,212,475,550.81
  5. Step 5: Solve for x
    x = 1,212,475,550.81/39,915.30
  6. Step 6: Final answer
    x = 30,376.21

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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.