Home / 28,301.43-39,055.15-15,554.61

Finding the Fourth Proportional to 28,301.43, 39,055.15 and 15,554.61

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Solution

The fourth proportional to 28,301.43, 39,055.15 and 15,554.61 is: 21,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.43 : 39,055.15 = 15,554.61 : x
  2. Step 2: Convert to fraction form
    28,301.43/39,055.15 = 15,554.61/x
  3. Step 3: Cross multiply
    28,301.43x = 39,055.15 × 15,554.61
  4. Step 4: Simplify right side
    28,301.43x = 607,487,638.04
  5. Step 5: Solve for x
    x = 607,487,638.04/28,301.43
  6. Step 6: Final answer
    x = 21,464.91

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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.