Home / 28,211.57-38,944.38-19,746.94

Finding the Fourth Proportional to 28,211.57, 38,944.38 and 19,746.94

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Solution

The fourth proportional to 28,211.57, 38,944.38 and 19,746.94 is: 27,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.57 : 38,944.38 = 19,746.94 : x
  2. Step 2: Convert to fraction form
    28,211.57/38,944.38 = 19,746.94/x
  3. Step 3: Cross multiply
    28,211.57x = 38,944.38 × 19,746.94
  4. Step 4: Simplify right side
    28,211.57x = 769,032,273.83
  5. Step 5: Solve for x
    x = 769,032,273.83/28,211.57
  6. Step 6: Final answer
    x = 27,259.46

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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.