Home / 20,706.03-28,574.30-11,274.66

Finding the Fourth Proportional to 20,706.03, 28,574.30 and 11,274.66

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Solution

The fourth proportional to 20,706.03, 28,574.30 and 11,274.66 is: 15,559.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.03 : 28,574.30 = 11,274.66 : x
  2. Step 2: Convert to fraction form
    20,706.03/28,574.30 = 11,274.66/x
  3. Step 3: Cross multiply
    20,706.03x = 28,574.30 × 11,274.66
  4. Step 4: Simplify right side
    20,706.03x = 322,165,545.42
  5. Step 5: Solve for x
    x = 322,165,545.42/20,706.03
  6. Step 6: Final answer
    x = 15,559.02

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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.