Home / 19,946.88-29,920.23-5,154.54

Finding the Fourth Proportional to 19,946.88, 29,920.23 and 5,154.54

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Solution

The fourth proportional to 19,946.88, 29,920.23 and 5,154.54 is: 7,731.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946.88 : 29,920.23 = 5,154.54 : x
  2. Step 2: Convert to fraction form
    19,946.88/29,920.23 = 5,154.54/x
  3. Step 3: Cross multiply
    19,946.88x = 29,920.23 × 5,154.54
  4. Step 4: Simplify right side
    19,946.88x = 154,225,022.34
  5. Step 5: Solve for x
    x = 154,225,022.34/19,946.88
  6. Step 6: Final answer
    x = 7,731.79

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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.