Home / 31,799.72-47,694.54-19,156.34

Finding the Fourth Proportional to 31,799.72, 47,694.54 and 19,156.34

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Solution

The fourth proportional to 31,799.72, 47,694.54 and 19,156.34 is: 28,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.72 : 47,694.54 = 19,156.34 : x
  2. Step 2: Convert to fraction form
    31,799.72/47,694.54 = 19,156.34/x
  3. Step 3: Cross multiply
    31,799.72x = 47,694.54 × 19,156.34
  4. Step 4: Simplify right side
    31,799.72x = 913,652,824.38
  5. Step 5: Solve for x
    x = 913,652,824.38/31,799.72
  6. Step 6: Final answer
    x = 28,731.47

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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.