Home / 28,213.91-42,323.47-10,206.65

Finding the Fourth Proportional to 28,213.91, 42,323.47 and 10,206.65

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Solution

The fourth proportional to 28,213.91, 42,323.47 and 10,206.65 is: 15,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.91 : 42,323.47 = 10,206.65 : x
  2. Step 2: Convert to fraction form
    28,213.91/42,323.47 = 10,206.65/x
  3. Step 3: Cross multiply
    28,213.91x = 42,323.47 × 10,206.65
  4. Step 4: Simplify right side
    28,213.91x = 431,980,699.55
  5. Step 5: Solve for x
    x = 431,980,699.55/28,213.91
  6. Step 6: Final answer
    x = 15,310.91

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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.