Home / 27,919.69-38,531.90-17,312.74

Finding the Fourth Proportional to 27,919.69, 38,531.90 and 17,312.74

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Solution

The fourth proportional to 27,919.69, 38,531.90 and 17,312.74 is: 23,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919.69 : 38,531.90 = 17,312.74 : x
  2. Step 2: Convert to fraction form
    27,919.69/38,531.90 = 17,312.74/x
  3. Step 3: Cross multiply
    27,919.69x = 38,531.90 × 17,312.74
  4. Step 4: Simplify right side
    27,919.69x = 667,092,713.36
  5. Step 5: Solve for x
    x = 667,092,713.36/27,919.69
  6. Step 6: Final answer
    x = 23,893.27

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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.