Home / 28,396.02-42,566.91-10,621.86

Finding the Fourth Proportional to 28,396.02, 42,566.91 and 10,621.86

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Solution

The fourth proportional to 28,396.02, 42,566.91 and 10,621.86 is: 15,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,396.02 : 42,566.91 = 10,621.86 : x
  2. Step 2: Convert to fraction form
    28,396.02/42,566.91 = 10,621.86/x
  3. Step 3: Cross multiply
    28,396.02x = 42,566.91 × 10,621.86
  4. Step 4: Simplify right side
    28,396.02x = 452,139,758.65
  5. Step 5: Solve for x
    x = 452,139,758.65/28,396.02
  6. Step 6: Final answer
    x = 15,922.65

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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.