Home / 20,683.05-28,530.59-15,011.22

Finding the Fourth Proportional to 20,683.05, 28,530.59 and 15,011.22

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Solution

The fourth proportional to 20,683.05, 28,530.59 and 15,011.22 is: 20,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.05 : 28,530.59 = 15,011.22 : x
  2. Step 2: Convert to fraction form
    20,683.05/28,530.59 = 15,011.22/x
  3. Step 3: Cross multiply
    20,683.05x = 28,530.59 × 15,011.22
  4. Step 4: Simplify right side
    20,683.05x = 428,278,888.16
  5. Step 5: Solve for x
    x = 428,278,888.16/20,683.05
  6. Step 6: Final answer
    x = 20,706.76

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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.