Home / 34,721.69-47,916.13-19,615.75

Finding the Fourth Proportional to 34,721.69, 47,916.13 and 19,615.75

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Solution

The fourth proportional to 34,721.69, 47,916.13 and 19,615.75 is: 27,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.69 : 47,916.13 = 19,615.75 : x
  2. Step 2: Convert to fraction form
    34,721.69/47,916.13 = 19,615.75/x
  3. Step 3: Cross multiply
    34,721.69x = 47,916.13 × 19,615.75
  4. Step 4: Simplify right side
    34,721.69x = 939,910,827.05
  5. Step 5: Solve for x
    x = 939,910,827.05/34,721.69
  6. Step 6: Final answer
    x = 27,069.85

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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.