Home / 20,384.62-28,117.80-14,727.66

Finding the Fourth Proportional to 20,384.62, 28,117.80 and 14,727.66

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Solution

The fourth proportional to 20,384.62, 28,117.80 and 14,727.66 is: 20,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.62 : 28,117.80 = 14,727.66 : x
  2. Step 2: Convert to fraction form
    20,384.62/28,117.80 = 14,727.66/x
  3. Step 3: Cross multiply
    20,384.62x = 28,117.80 × 14,727.66
  4. Step 4: Simplify right side
    20,384.62x = 414,109,398.35
  5. Step 5: Solve for x
    x = 414,109,398.35/20,384.62
  6. Step 6: Final answer
    x = 20,314.80

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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.