Home / 27,946.89-38,547.19-18,978.82

Finding the Fourth Proportional to 27,946.89, 38,547.19 and 18,978.82

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Solution

The fourth proportional to 27,946.89, 38,547.19 and 18,978.82 is: 26,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,946.89 : 38,547.19 = 18,978.82 : x
  2. Step 2: Convert to fraction form
    27,946.89/38,547.19 = 18,978.82/x
  3. Step 3: Cross multiply
    27,946.89x = 38,547.19 × 18,978.82
  4. Step 4: Simplify right side
    27,946.89x = 731,580,180.52
  5. Step 5: Solve for x
    x = 731,580,180.52/27,946.89
  6. Step 6: Final answer
    x = 26,177.52

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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.