Home / 28,351.35-42,529.10-9,623.79

Finding the Fourth Proportional to 28,351.35, 42,529.10 and 9,623.79

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Solution

The fourth proportional to 28,351.35, 42,529.10 and 9,623.79 is: 14,436.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.35 : 42,529.10 = 9,623.79 : x
  2. Step 2: Convert to fraction form
    28,351.35/42,529.10 = 9,623.79/x
  3. Step 3: Cross multiply
    28,351.35x = 42,529.10 × 9,623.79
  4. Step 4: Simplify right side
    28,351.35x = 409,291,079.17
  5. Step 5: Solve for x
    x = 409,291,079.17/28,351.35
  6. Step 6: Final answer
    x = 14,436.39

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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.