Home / 28,213.65-42,320.46-8,506.04

Finding the Fourth Proportional to 28,213.65, 42,320.46 and 8,506.04

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Solution

The fourth proportional to 28,213.65, 42,320.46 and 8,506.04 is: 12,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.65 : 42,320.46 = 8,506.04 : x
  2. Step 2: Convert to fraction form
    28,213.65/42,320.46 = 8,506.04/x
  3. Step 3: Cross multiply
    28,213.65x = 42,320.46 × 8,506.04
  4. Step 4: Simplify right side
    28,213.65x = 359,979,313.98
  5. Step 5: Solve for x
    x = 359,979,313.98/28,213.65
  6. Step 6: Final answer
    x = 12,759.05

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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.