Home / 19,132.32-28,700.13-5,281.32

Finding the Fourth Proportional to 19,132.32, 28,700.13 and 5,281.32

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Solution

The fourth proportional to 19,132.32, 28,700.13 and 5,281.32 is: 7,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132.32 : 28,700.13 = 5,281.32 : x
  2. Step 2: Convert to fraction form
    19,132.32/28,700.13 = 5,281.32/x
  3. Step 3: Cross multiply
    19,132.32x = 28,700.13 × 5,281.32
  4. Step 4: Simplify right side
    19,132.32x = 151,574,570.57
  5. Step 5: Solve for x
    x = 151,574,570.57/19,132.32
  6. Step 6: Final answer
    x = 7,922.44

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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.