Home / 28,279.17-42,411.74-9,558.79

Finding the Fourth Proportional to 28,279.17, 42,411.74 and 9,558.79

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Solution

The fourth proportional to 28,279.17, 42,411.74 and 9,558.79 is: 14,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.17 : 42,411.74 = 9,558.79 : x
  2. Step 2: Convert to fraction form
    28,279.17/42,411.74 = 9,558.79/x
  3. Step 3: Cross multiply
    28,279.17x = 42,411.74 × 9,558.79
  4. Step 4: Simplify right side
    28,279.17x = 405,404,704.14
  5. Step 5: Solve for x
    x = 405,404,704.14/28,279.17
  6. Step 6: Final answer
    x = 14,335.81

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1.5x scale

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.