Home / 39,110.31-53,972.52-21,205.62

Finding the Fourth Proportional to 39,110.31, 53,972.52 and 21,205.62

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Solution

The fourth proportional to 39,110.31, 53,972.52 and 21,205.62 is: 29,263.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,110.31 : 53,972.52 = 21,205.62 : x
  2. Step 2: Convert to fraction form
    39,110.31/53,972.52 = 21,205.62/x
  3. Step 3: Cross multiply
    39,110.31x = 53,972.52 × 21,205.62
  4. Step 4: Simplify right side
    39,110.31x = 1,144,520,749.56
  5. Step 5: Solve for x
    x = 1,144,520,749.56/39,110.31
  6. Step 6: Final answer
    x = 29,263.91

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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.