Home / 39,835.40-54,972.86-21,930.27

Finding the Fourth Proportional to 39,835.40, 54,972.86 and 21,930.27

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Solution

The fourth proportional to 39,835.40, 54,972.86 and 21,930.27 is: 30,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.40 : 54,972.86 = 21,930.27 : x
  2. Step 2: Convert to fraction form
    39,835.40/54,972.86 = 21,930.27/x
  3. Step 3: Cross multiply
    39,835.40x = 54,972.86 × 21,930.27
  4. Step 4: Simplify right side
    39,835.40x = 1,205,569,552.82
  5. Step 5: Solve for x
    x = 1,205,569,552.82/39,835.40
  6. Step 6: Final answer
    x = 30,263.77

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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.