Home / 20,827.06-28,744.84-16,384.72

Finding the Fourth Proportional to 20,827.06, 28,744.84 and 16,384.72

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Solution

The fourth proportional to 20,827.06, 28,744.84 and 16,384.72 is: 22,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.06 : 28,744.84 = 16,384.72 : x
  2. Step 2: Convert to fraction form
    20,827.06/28,744.84 = 16,384.72/x
  3. Step 3: Cross multiply
    20,827.06x = 28,744.84 × 16,384.72
  4. Step 4: Simplify right side
    20,827.06x = 470,976,154.84
  5. Step 5: Solve for x
    x = 470,976,154.84/20,827.06
  6. Step 6: Final answer
    x = 22,613.66

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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.