Home / 28,506.52-42,767.72-11,874.40

Finding the Fourth Proportional to 28,506.52, 42,767.72 and 11,874.40

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Solution

The fourth proportional to 28,506.52, 42,767.72 and 11,874.40 is: 17,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.52 : 42,767.72 = 11,874.40 : x
  2. Step 2: Convert to fraction form
    28,506.52/42,767.72 = 11,874.40/x
  3. Step 3: Cross multiply
    28,506.52x = 42,767.72 × 11,874.40
  4. Step 4: Simplify right side
    28,506.52x = 507,841,014.37
  5. Step 5: Solve for x
    x = 507,841,014.37/28,506.52
  6. Step 6: Final answer
    x = 17,814.91

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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.