Home / 28,540.01-39,386.31-15,964.76

Finding the Fourth Proportional to 28,540.01, 39,386.31 and 15,964.76

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Solution

The fourth proportional to 28,540.01, 39,386.31 and 15,964.76 is: 22,031.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.01 : 39,386.31 = 15,964.76 : x
  2. Step 2: Convert to fraction form
    28,540.01/39,386.31 = 15,964.76/x
  3. Step 3: Cross multiply
    28,540.01x = 39,386.31 × 15,964.76
  4. Step 4: Simplify right side
    28,540.01x = 628,792,986.44
  5. Step 5: Solve for x
    x = 628,792,986.44/28,540.01
  6. Step 6: Final answer
    x = 22,031.98

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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.