Home / 27,869.67-38,458.80-15,934.32

Finding the Fourth Proportional to 27,869.67, 38,458.80 and 15,934.32

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Solution

The fourth proportional to 27,869.67, 38,458.80 and 15,934.32 is: 21,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.67 : 38,458.80 = 15,934.32 : x
  2. Step 2: Convert to fraction form
    27,869.67/38,458.80 = 15,934.32/x
  3. Step 3: Cross multiply
    27,869.67x = 38,458.80 × 15,934.32
  4. Step 4: Simplify right side
    27,869.67x = 612,814,826.02
  5. Step 5: Solve for x
    x = 612,814,826.02/27,869.67
  6. Step 6: Final answer
    x = 21,988.59

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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.