Home / 28,874.90-43,308.70-9,153.65

Finding the Fourth Proportional to 28,874.90, 43,308.70 and 9,153.65

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Solution

The fourth proportional to 28,874.90, 43,308.70 and 9,153.65 is: 13,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.90 : 43,308.70 = 9,153.65 : x
  2. Step 2: Convert to fraction form
    28,874.90/43,308.70 = 9,153.65/x
  3. Step 3: Cross multiply
    28,874.90x = 43,308.70 × 9,153.65
  4. Step 4: Simplify right side
    28,874.90x = 396,432,681.76
  5. Step 5: Solve for x
    x = 396,432,681.76/28,874.90
  6. Step 6: Final answer
    x = 13,729.32

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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.