Home / 39,106.58-53,967.33-21,201.86

Finding the Fourth Proportional to 39,106.58, 53,967.33 and 21,201.86

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Solution

The fourth proportional to 39,106.58, 53,967.33 and 21,201.86 is: 29,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.58 : 53,967.33 = 21,201.86 : x
  2. Step 2: Convert to fraction form
    39,106.58/53,967.33 = 21,201.86/x
  3. Step 3: Cross multiply
    39,106.58x = 53,967.33 × 21,201.86
  4. Step 4: Simplify right side
    39,106.58x = 1,144,207,505.40
  5. Step 5: Solve for x
    x = 1,144,207,505.40/39,106.58
  6. Step 6: Final answer
    x = 29,258.70

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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.