Home / 39,083.06-53,934.80-21,178.06

Finding the Fourth Proportional to 39,083.06, 53,934.80 and 21,178.06

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Solution

The fourth proportional to 39,083.06, 53,934.80 and 21,178.06 is: 29,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.06 : 53,934.80 = 21,178.06 : x
  2. Step 2: Convert to fraction form
    39,083.06/53,934.80 = 21,178.06/x
  3. Step 3: Cross multiply
    39,083.06x = 53,934.80 × 21,178.06
  4. Step 4: Simplify right side
    39,083.06x = 1,142,234,213.76
  5. Step 5: Solve for x
    x = 1,142,234,213.76/39,083.06
  6. Step 6: Final answer
    x = 29,225.82

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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.