Home / 27,683.94-38,203.30-15,108.78

Finding the Fourth Proportional to 27,683.94, 38,203.30 and 15,108.78

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Solution

The fourth proportional to 27,683.94, 38,203.30 and 15,108.78 is: 20,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,683.94 : 38,203.30 = 15,108.78 : x
  2. Step 2: Convert to fraction form
    27,683.94/38,203.30 = 15,108.78/x
  3. Step 3: Cross multiply
    27,683.94x = 38,203.30 × 15,108.78
  4. Step 4: Simplify right side
    27,683.94x = 577,205,026.19
  5. Step 5: Solve for x
    x = 577,205,026.19/27,683.94
  6. Step 6: Final answer
    x = 20,849.82

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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.