Home / 35,639.18-49,177.76-19,722.68

Finding the Fourth Proportional to 35,639.18, 49,177.76 and 19,722.68

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Solution

The fourth proportional to 35,639.18, 49,177.76 and 19,722.68 is: 27,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.18 : 49,177.76 = 19,722.68 : x
  2. Step 2: Convert to fraction form
    35,639.18/49,177.76 = 19,722.68/x
  3. Step 3: Cross multiply
    35,639.18x = 49,177.76 × 19,722.68
  4. Step 4: Simplify right side
    35,639.18x = 969,917,223.60
  5. Step 5: Solve for x
    x = 969,917,223.60/35,639.18
  6. Step 6: Final answer
    x = 27,214.91

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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.