Home / 34,747.63-47,954.17-19,640.40

Finding the Fourth Proportional to 34,747.63, 47,954.17 and 19,640.40

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Solution

The fourth proportional to 34,747.63, 47,954.17 and 19,640.40 is: 27,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,747.63 : 47,954.17 = 19,640.40 : x
  2. Step 2: Convert to fraction form
    34,747.63/47,954.17 = 19,640.40/x
  3. Step 3: Cross multiply
    34,747.63x = 47,954.17 × 19,640.40
  4. Step 4: Simplify right side
    34,747.63x = 941,838,879.34
  5. Step 5: Solve for x
    x = 941,838,879.34/34,747.63
  6. Step 6: Final answer
    x = 27,105.13

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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.