Home / 27,949.86-38,569.77-20,005.38

Finding the Fourth Proportional to 27,949.86, 38,569.77 and 20,005.38

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Solution

The fourth proportional to 27,949.86, 38,569.77 and 20,005.38 is: 27,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.86 : 38,569.77 = 20,005.38 : x
  2. Step 2: Convert to fraction form
    27,949.86/38,569.77 = 20,005.38/x
  3. Step 3: Cross multiply
    27,949.86x = 38,569.77 × 20,005.38
  4. Step 4: Simplify right side
    27,949.86x = 771,602,905.36
  5. Step 5: Solve for x
    x = 771,602,905.36/27,949.86
  6. Step 6: Final answer
    x = 27,606.68

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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.