Home / 20,703.84-31,044.75-15,170.70

Finding the Fourth Proportional to 20,703.84, 31,044.75 and 15,170.70

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Solution

The fourth proportional to 20,703.84, 31,044.75 and 15,170.70 is: 22,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.84 : 31,044.75 = 15,170.70 : x
  2. Step 2: Convert to fraction form
    20,703.84/31,044.75 = 15,170.70/x
  3. Step 3: Cross multiply
    20,703.84x = 31,044.75 × 15,170.70
  4. Step 4: Simplify right side
    20,703.84x = 470,970,588.83
  5. Step 5: Solve for x
    x = 470,970,588.83/20,703.84
  6. Step 6: Final answer
    x = 22,747.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.