Home / 20,923.93-28,874.91-11,363.73

Finding the Fourth Proportional to 20,923.93, 28,874.91 and 11,363.73

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Solution

The fourth proportional to 20,923.93, 28,874.91 and 11,363.73 is: 15,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.93 : 28,874.91 = 11,363.73 : x
  2. Step 2: Convert to fraction form
    20,923.93/28,874.91 = 11,363.73/x
  3. Step 3: Cross multiply
    20,923.93x = 28,874.91 × 11,363.73
  4. Step 4: Simplify right side
    20,923.93x = 328,126,681.01
  5. Step 5: Solve for x
    x = 328,126,681.01/20,923.93
  6. Step 6: Final answer
    x = 15,681.89

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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.