Home / 22,428.36-30,946.50-15,352.20

Finding the Fourth Proportional to 22,428.36, 30,946.50 and 15,352.20

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Solution

The fourth proportional to 22,428.36, 30,946.50 and 15,352.20 is: 21,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.36 : 30,946.50 = 15,352.20 : x
  2. Step 2: Convert to fraction form
    22,428.36/30,946.50 = 15,352.20/x
  3. Step 3: Cross multiply
    22,428.36x = 30,946.50 × 15,352.20
  4. Step 4: Simplify right side
    22,428.36x = 475,096,857.30
  5. Step 5: Solve for x
    x = 475,096,857.30/22,428.36
  6. Step 6: Final answer
    x = 21,182.86

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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.