Home / 28,529.04-42,781.32-9,810.96

Finding the Fourth Proportional to 28,529.04, 42,781.32 and 9,810.96

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Solution

The fourth proportional to 28,529.04, 42,781.32 and 9,810.96 is: 14,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.04 : 42,781.32 = 9,810.96 : x
  2. Step 2: Convert to fraction form
    28,529.04/42,781.32 = 9,810.96/x
  3. Step 3: Cross multiply
    28,529.04x = 42,781.32 × 9,810.96
  4. Step 4: Simplify right side
    28,529.04x = 419,725,819.27
  5. Step 5: Solve for x
    x = 419,725,819.27/28,529.04
  6. Step 6: Final answer
    x = 14,712.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.