Home / 27,948.66-38,559.74-18,980.62

Finding the Fourth Proportional to 27,948.66, 38,559.74 and 18,980.62

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Solution

The fourth proportional to 27,948.66, 38,559.74 and 18,980.62 is: 26,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,948.66 : 38,559.74 = 18,980.62 : x
  2. Step 2: Convert to fraction form
    27,948.66/38,559.74 = 18,980.62/x
  3. Step 3: Cross multiply
    27,948.66x = 38,559.74 × 18,980.62
  4. Step 4: Simplify right side
    27,948.66x = 731,887,772.24
  5. Step 5: Solve for x
    x = 731,887,772.24/27,948.66
  6. Step 6: Final answer
    x = 26,186.86

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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.