Home / 27,813.64-38,381.34-15,876.52

Finding the Fourth Proportional to 27,813.64, 38,381.34 and 15,876.52

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Solution

The fourth proportional to 27,813.64, 38,381.34 and 15,876.52 is: 21,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,813.64 : 38,381.34 = 15,876.52 : x
  2. Step 2: Convert to fraction form
    27,813.64/38,381.34 = 15,876.52/x
  3. Step 3: Cross multiply
    27,813.64x = 38,381.34 × 15,876.52
  4. Step 4: Simplify right side
    27,813.64x = 609,362,112.14
  5. Step 5: Solve for x
    x = 609,362,112.14/27,813.64
  6. Step 6: Final answer
    x = 21,908.75

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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.