Home / 20,941.16-28,898.89-11,510.33

Finding the Fourth Proportional to 20,941.16, 28,898.89 and 11,510.33

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Solution

The fourth proportional to 20,941.16, 28,898.89 and 11,510.33 is: 15,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.16 : 28,898.89 = 11,510.33 : x
  2. Step 2: Convert to fraction form
    20,941.16/28,898.89 = 11,510.33/x
  3. Step 3: Cross multiply
    20,941.16x = 28,898.89 × 11,510.33
  4. Step 4: Simplify right side
    20,941.16x = 332,635,587.26
  5. Step 5: Solve for x
    x = 332,635,587.26/20,941.16
  6. Step 6: Final answer
    x = 15,884.30

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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.