Home / 28,856.16-43,281.81-9,131.85

Finding the Fourth Proportional to 28,856.16, 43,281.81 and 9,131.85

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Solution

The fourth proportional to 28,856.16, 43,281.81 and 9,131.85 is: 13,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.16 : 43,281.81 = 9,131.85 : x
  2. Step 2: Convert to fraction form
    28,856.16/43,281.81 = 9,131.85/x
  3. Step 3: Cross multiply
    28,856.16x = 43,281.81 × 9,131.85
  4. Step 4: Simplify right side
    28,856.16x = 395,242,996.65
  5. Step 5: Solve for x
    x = 395,242,996.65/28,856.16
  6. Step 6: Final answer
    x = 13,697.01

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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.