Home / 39,070.92-53,917.81-21,165.99

Finding the Fourth Proportional to 39,070.92, 53,917.81 and 21,165.99

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Solution

The fourth proportional to 39,070.92, 53,917.81 and 21,165.99 is: 29,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.92 : 53,917.81 = 21,165.99 : x
  2. Step 2: Convert to fraction form
    39,070.92/53,917.81 = 21,165.99/x
  3. Step 3: Cross multiply
    39,070.92x = 53,917.81 × 21,165.99
  4. Step 4: Simplify right side
    39,070.92x = 1,141,224,055.93
  5. Step 5: Solve for x
    x = 1,141,224,055.93/39,070.92
  6. Step 6: Final answer
    x = 29,209.04

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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.