Home / 28,540.76-39,386.36-15,965.52

Finding the Fourth Proportional to 28,540.76, 39,386.36 and 15,965.52

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Solution

The fourth proportional to 28,540.76, 39,386.36 and 15,965.52 is: 22,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.76 : 39,386.36 = 15,965.52 : x
  2. Step 2: Convert to fraction form
    28,540.76/39,386.36 = 15,965.52/x
  3. Step 3: Cross multiply
    28,540.76x = 39,386.36 × 15,965.52
  4. Step 4: Simplify right side
    28,540.76x = 628,823,718.31
  5. Step 5: Solve for x
    x = 628,823,718.31/28,540.76
  6. Step 6: Final answer
    x = 22,032.48

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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.