Home / 27,790.29-38,341.08-15,845.04

Finding the Fourth Proportional to 27,790.29, 38,341.08 and 15,845.04

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Solution

The fourth proportional to 27,790.29, 38,341.08 and 15,845.04 is: 21,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.29 : 38,341.08 = 15,845.04 : x
  2. Step 2: Convert to fraction form
    27,790.29/38,341.08 = 15,845.04/x
  3. Step 3: Cross multiply
    27,790.29x = 38,341.08 × 15,845.04
  4. Step 4: Simplify right side
    27,790.29x = 607,515,946.24
  5. Step 5: Solve for x
    x = 607,515,946.24/27,790.29
  6. Step 6: Final answer
    x = 21,860.73

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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.