Home / 34,731.78-47,929.89-18,816.09

Finding the Fourth Proportional to 34,731.78, 47,929.89 and 18,816.09

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Solution

The fourth proportional to 34,731.78, 47,929.89 and 18,816.09 is: 25,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,731.78 : 47,929.89 = 18,816.09 : x
  2. Step 2: Convert to fraction form
    34,731.78/47,929.89 = 18,816.09/x
  3. Step 3: Cross multiply
    34,731.78x = 47,929.89 × 18,816.09
  4. Step 4: Simplify right side
    34,731.78x = 901,853,123.93
  5. Step 5: Solve for x
    x = 901,853,123.93/34,731.78
  6. Step 6: Final answer
    x = 25,966.22

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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.