Home / 21,488.76-29,657.20-12,057.26

Finding the Fourth Proportional to 21,488.76, 29,657.20 and 12,057.26

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Solution

The fourth proportional to 21,488.76, 29,657.20 and 12,057.26 is: 16,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.76 : 29,657.20 = 12,057.26 : x
  2. Step 2: Convert to fraction form
    21,488.76/29,657.20 = 12,057.26/x
  3. Step 3: Cross multiply
    21,488.76x = 29,657.20 × 12,057.26
  4. Step 4: Simplify right side
    21,488.76x = 357,584,571.27
  5. Step 5: Solve for x
    x = 357,584,571.27/21,488.76
  6. Step 6: Final answer
    x = 16,640.54

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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.