Home / 35,820.20-49,431.90-19,906.13

Finding the Fourth Proportional to 35,820.20, 49,431.90 and 19,906.13

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Solution

The fourth proportional to 35,820.20, 49,431.90 and 19,906.13 is: 27,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,820.20 : 49,431.90 = 19,906.13 : x
  2. Step 2: Convert to fraction form
    35,820.20/49,431.90 = 19,906.13/x
  3. Step 3: Cross multiply
    35,820.20x = 49,431.90 × 19,906.13
  4. Step 4: Simplify right side
    35,820.20x = 983,997,580.39
  5. Step 5: Solve for x
    x = 983,997,580.39/35,820.20
  6. Step 6: Final answer
    x = 27,470.47

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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.