Home / 39,106.80-53,967.78-21,201.93

Finding the Fourth Proportional to 39,106.80, 53,967.78 and 21,201.93

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Solution

The fourth proportional to 39,106.80, 53,967.78 and 21,201.93 is: 29,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.80 : 53,967.78 = 21,201.93 : x
  2. Step 2: Convert to fraction form
    39,106.80/53,967.78 = 21,201.93/x
  3. Step 3: Cross multiply
    39,106.80x = 53,967.78 × 21,201.93
  4. Step 4: Simplify right side
    39,106.80x = 1,144,221,093.82
  5. Step 5: Solve for x
    x = 1,144,221,093.82/39,106.80
  6. Step 6: Final answer
    x = 29,258.88

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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.