Home / 15,380.26-21,227.48-14,679.06

Finding the Fourth Proportional to 15,380.26, 21,227.48 and 14,679.06

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Solution

The fourth proportional to 15,380.26, 21,227.48 and 14,679.06 is: 20,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.26 : 21,227.48 = 14,679.06 : x
  2. Step 2: Convert to fraction form
    15,380.26/21,227.48 = 14,679.06/x
  3. Step 3: Cross multiply
    15,380.26x = 21,227.48 × 14,679.06
  4. Step 4: Simplify right side
    15,380.26x = 311,599,379.17
  5. Step 5: Solve for x
    x = 311,599,379.17/15,380.26
  6. Step 6: Final answer
    x = 20,259.70

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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.