Home / 39,852.95-54,997.05-21,947.91

Finding the Fourth Proportional to 39,852.95, 54,997.05 and 21,947.91

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Solution

The fourth proportional to 39,852.95, 54,997.05 and 21,947.91 is: 30,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.95 : 54,997.05 = 21,947.91 : x
  2. Step 2: Convert to fraction form
    39,852.95/54,997.05 = 21,947.91/x
  3. Step 3: Cross multiply
    39,852.95x = 54,997.05 × 21,947.91
  4. Step 4: Simplify right side
    39,852.95x = 1,207,070,303.67
  5. Step 5: Solve for x
    x = 1,207,070,303.67/39,852.95
  6. Step 6: Final answer
    x = 30,288.11

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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.