Home / 28,261.22-39,001.20-15,995.66

Finding the Fourth Proportional to 28,261.22, 39,001.20 and 15,995.66

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Solution

The fourth proportional to 28,261.22, 39,001.20 and 15,995.66 is: 22,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.22 : 39,001.20 = 15,995.66 : x
  2. Step 2: Convert to fraction form
    28,261.22/39,001.20 = 15,995.66/x
  3. Step 3: Cross multiply
    28,261.22x = 39,001.20 × 15,995.66
  4. Step 4: Simplify right side
    28,261.22x = 623,849,934.79
  5. Step 5: Solve for x
    x = 623,849,934.79/28,261.22
  6. Step 6: Final answer
    x = 22,074.42

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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.