Home / 20,010.15-30,015.09-18,792.32

Finding the Fourth Proportional to 20,010.15, 30,015.09 and 18,792.32

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Solution

The fourth proportional to 20,010.15, 30,015.09 and 18,792.32 is: 28,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.15 : 30,015.09 = 18,792.32 : x
  2. Step 2: Convert to fraction form
    20,010.15/30,015.09 = 18,792.32/x
  3. Step 3: Cross multiply
    20,010.15x = 30,015.09 × 18,792.32
  4. Step 4: Simplify right side
    20,010.15x = 564,053,026.03
  5. Step 5: Solve for x
    x = 564,053,026.03/20,010.15
  6. Step 6: Final answer
    x = 28,188.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.