Home / 28,508.25-39,342.60-15,933

Finding the Fourth Proportional to 28,508.25, 39,342.60 and 15,933

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Solution

The fourth proportional to 28,508.25, 39,342.60 and 15,933 is: 21,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.25 : 39,342.60 = 15,933 : x
  2. Step 2: Convert to fraction form
    28,508.25/39,342.60 = 15,933/x
  3. Step 3: Cross multiply
    28,508.25x = 39,342.60 × 15,933
  4. Step 4: Simplify right side
    28,508.25x = 626,845,645.80
  5. Step 5: Solve for x
    x = 626,845,645.80/28,508.25
  6. Step 6: Final answer
    x = 21,988.22

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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.