Home / 39,326.04-54,270.77-21,421

Finding the Fourth Proportional to 39,326.04, 54,270.77 and 21,421

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Solution

The fourth proportional to 39,326.04, 54,270.77 and 21,421 is: 29,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,326.04 : 54,270.77 = 21,421 : x
  2. Step 2: Convert to fraction form
    39,326.04/54,270.77 = 21,421/x
  3. Step 3: Cross multiply
    39,326.04x = 54,270.77 × 21,421
  4. Step 4: Simplify right side
    39,326.04x = 1,162,534,164.17
  5. Step 5: Solve for x
    x = 1,162,534,164.17/39,326.04
  6. Step 6: Final answer
    x = 29,561.43

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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.