Home / 20,735.23-28,614.66-11,785.70

Finding the Fourth Proportional to 20,735.23, 28,614.66 and 11,785.70

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Solution

The fourth proportional to 20,735.23, 28,614.66 and 11,785.70 is: 16,264.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.23 : 28,614.66 = 11,785.70 : x
  2. Step 2: Convert to fraction form
    20,735.23/28,614.66 = 11,785.70/x
  3. Step 3: Cross multiply
    20,735.23x = 28,614.66 × 11,785.70
  4. Step 4: Simplify right side
    20,735.23x = 337,243,798.36
  5. Step 5: Solve for x
    x = 337,243,798.36/20,735.23
  6. Step 6: Final answer
    x = 16,264.29

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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.