Home / 15,972.32-23,962.40-4,879.20

Finding the Fourth Proportional to 15,972.32, 23,962.40 and 4,879.20

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Solution

The fourth proportional to 15,972.32, 23,962.40 and 4,879.20 is: 7,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.32 : 23,962.40 = 4,879.20 : x
  2. Step 2: Convert to fraction form
    15,972.32/23,962.40 = 4,879.20/x
  3. Step 3: Cross multiply
    15,972.32x = 23,962.40 × 4,879.20
  4. Step 4: Simplify right side
    15,972.32x = 116,917,342.08
  5. Step 5: Solve for x
    x = 116,917,342.08/15,972.32
  6. Step 6: Final answer
    x = 7,320.00

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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.