Home / 20,734-28,632.36-14,463.76

Finding the Fourth Proportional to 20,734, 28,632.36 and 14,463.76

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Solution

The fourth proportional to 20,734, 28,632.36 and 14,463.76 is: 19,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734 : 28,632.36 = 14,463.76 : x
  2. Step 2: Convert to fraction form
    20,734/28,632.36 = 14,463.76/x
  3. Step 3: Cross multiply
    20,734x = 28,632.36 × 14,463.76
  4. Step 4: Simplify right side
    20,734x = 414,131,583.27
  5. Step 5: Solve for x
    x = 414,131,583.27/20,734
  6. Step 6: Final answer
    x = 19,973.55

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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.