Home / 27,801.86-38,363.67-15,862.88

Finding the Fourth Proportional to 27,801.86, 38,363.67 and 15,862.88

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Solution

The fourth proportional to 27,801.86, 38,363.67 and 15,862.88 is: 21,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.86 : 38,363.67 = 15,862.88 : x
  2. Step 2: Convert to fraction form
    27,801.86/38,363.67 = 15,862.88/x
  3. Step 3: Cross multiply
    27,801.86x = 38,363.67 × 15,862.88
  4. Step 4: Simplify right side
    27,801.86x = 608,558,101.75
  5. Step 5: Solve for x
    x = 608,558,101.75/27,801.86
  6. Step 6: Final answer
    x = 21,889.12

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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.