Home / 39,835.26-54,972.95-21,930.35

Finding the Fourth Proportional to 39,835.26, 54,972.95 and 21,930.35

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Solution

The fourth proportional to 39,835.26, 54,972.95 and 21,930.35 is: 30,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.26 : 54,972.95 = 21,930.35 : x
  2. Step 2: Convert to fraction form
    39,835.26/54,972.95 = 21,930.35/x
  3. Step 3: Cross multiply
    39,835.26x = 54,972.95 × 21,930.35
  4. Step 4: Simplify right side
    39,835.26x = 1,205,575,649.52
  5. Step 5: Solve for x
    x = 1,205,575,649.52/39,835.26
  6. Step 6: Final answer
    x = 30,264.03

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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.