Home / 28,411.04-39,208.57-15,835.88

Finding the Fourth Proportional to 28,411.04, 39,208.57 and 15,835.88

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Solution

The fourth proportional to 28,411.04, 39,208.57 and 15,835.88 is: 21,854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.04 : 39,208.57 = 15,835.88 : x
  2. Step 2: Convert to fraction form
    28,411.04/39,208.57 = 15,835.88/x
  3. Step 3: Cross multiply
    28,411.04x = 39,208.57 × 15,835.88
  4. Step 4: Simplify right side
    28,411.04x = 620,902,209.49
  5. Step 5: Solve for x
    x = 620,902,209.49/28,411.04
  6. Step 6: Final answer
    x = 21,854.26

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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.