Home / 27,877.77-38,471.36-15,941.35

Finding the Fourth Proportional to 27,877.77, 38,471.36 and 15,941.35

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Solution

The fourth proportional to 27,877.77, 38,471.36 and 15,941.35 is: 21,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.77 : 38,471.36 = 15,941.35 : x
  2. Step 2: Convert to fraction form
    27,877.77/38,471.36 = 15,941.35/x
  3. Step 3: Cross multiply
    27,877.77x = 38,471.36 × 15,941.35
  4. Step 4: Simplify right side
    27,877.77x = 613,285,414.74
  5. Step 5: Solve for x
    x = 613,285,414.74/27,877.77
  6. Step 6: Final answer
    x = 21,999.08

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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.