Home / 27,946.67-38,556.99-18,978.62

Finding the Fourth Proportional to 27,946.67, 38,556.99 and 18,978.62

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Solution

The fourth proportional to 27,946.67, 38,556.99 and 18,978.62 is: 26,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,946.67 : 38,556.99 = 18,978.62 : x
  2. Step 2: Convert to fraction form
    27,946.67/38,556.99 = 18,978.62/x
  3. Step 3: Cross multiply
    27,946.67x = 38,556.99 × 18,978.62
  4. Step 4: Simplify right side
    27,946.67x = 731,758,268.77
  5. Step 5: Solve for x
    x = 731,758,268.77/27,946.67
  6. Step 6: Final answer
    x = 26,184.10

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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.