Home / 27,946.69-38,546.90-18,978.62

Finding the Fourth Proportional to 27,946.69, 38,546.90 and 18,978.62

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Solution

The fourth proportional to 27,946.69, 38,546.90 and 18,978.62 is: 26,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,946.69 : 38,546.90 = 18,978.62 : x
  2. Step 2: Convert to fraction form
    27,946.69/38,546.90 = 18,978.62/x
  3. Step 3: Cross multiply
    27,946.69x = 38,546.90 × 18,978.62
  4. Step 4: Simplify right side
    27,946.69x = 731,566,967.28
  5. Step 5: Solve for x
    x = 731,566,967.28/27,946.69
  6. Step 6: Final answer
    x = 26,177.23

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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.