Home / 29,720.20-41,027.07-18,979.15

Finding the Fourth Proportional to 29,720.20, 41,027.07 and 18,979.15

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Solution

The fourth proportional to 29,720.20, 41,027.07 and 18,979.15 is: 26,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,720.20 : 41,027.07 = 18,979.15 : x
  2. Step 2: Convert to fraction form
    29,720.20/41,027.07 = 18,979.15/x
  3. Step 3: Cross multiply
    29,720.20x = 41,027.07 × 18,979.15
  4. Step 4: Simplify right side
    29,720.20x = 778,658,915.59
  5. Step 5: Solve for x
    x = 778,658,915.59/29,720.20
  6. Step 6: Final answer
    x = 26,199.65

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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.