Home / 35,640.40-49,182.24-19,723.36

Finding the Fourth Proportional to 35,640.40, 49,182.24 and 19,723.36

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Solution

The fourth proportional to 35,640.40, 49,182.24 and 19,723.36 is: 27,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.40 : 49,182.24 = 19,723.36 : x
  2. Step 2: Convert to fraction form
    35,640.40/49,182.24 = 19,723.36/x
  3. Step 3: Cross multiply
    35,640.40x = 49,182.24 × 19,723.36
  4. Step 4: Simplify right side
    35,640.40x = 970,039,025.13
  5. Step 5: Solve for x
    x = 970,039,025.13/35,640.40
  6. Step 6: Final answer
    x = 27,217.40

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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.