Home / 28,044.86-38,700.15-15,469.58

Finding the Fourth Proportional to 28,044.86, 38,700.15 and 15,469.58

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Solution

The fourth proportional to 28,044.86, 38,700.15 and 15,469.58 is: 21,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,044.86 : 38,700.15 = 15,469.58 : x
  2. Step 2: Convert to fraction form
    28,044.86/38,700.15 = 15,469.58/x
  3. Step 3: Cross multiply
    28,044.86x = 38,700.15 × 15,469.58
  4. Step 4: Simplify right side
    28,044.86x = 598,675,066.44
  5. Step 5: Solve for x
    x = 598,675,066.44/28,044.86
  6. Step 6: Final answer
    x = 21,347.05

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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.