Home / 19,130.32-28,697.13-5,279.32

Finding the Fourth Proportional to 19,130.32, 28,697.13 and 5,279.32

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Solution

The fourth proportional to 19,130.32, 28,697.13 and 5,279.32 is: 7,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.32 : 28,697.13 = 5,279.32 : x
  2. Step 2: Convert to fraction form
    19,130.32/28,697.13 = 5,279.32/x
  3. Step 3: Cross multiply
    19,130.32x = 28,697.13 × 5,279.32
  4. Step 4: Simplify right side
    19,130.32x = 151,501,332.35
  5. Step 5: Solve for x
    x = 151,501,332.35/19,130.32
  6. Step 6: Final answer
    x = 7,919.44

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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.