Home / 39,177.45-54,064.71-21,272.31

Finding the Fourth Proportional to 39,177.45, 54,064.71 and 21,272.31

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Solution

The fourth proportional to 39,177.45, 54,064.71 and 21,272.31 is: 29,355.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.45 : 54,064.71 = 21,272.31 : x
  2. Step 2: Convert to fraction form
    39,177.45/54,064.71 = 21,272.31/x
  3. Step 3: Cross multiply
    39,177.45x = 54,064.71 × 21,272.31
  4. Step 4: Simplify right side
    39,177.45x = 1,150,081,271.18
  5. Step 5: Solve for x
    x = 1,150,081,271.18/39,177.45
  6. Step 6: Final answer
    x = 29,355.69

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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.