Home / 15,238.20-21,036.36-14,424.24

Finding the Fourth Proportional to 15,238.20, 21,036.36 and 14,424.24

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Solution

The fourth proportional to 15,238.20, 21,036.36 and 14,424.24 is: 19,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.20 : 21,036.36 = 14,424.24 : x
  2. Step 2: Convert to fraction form
    15,238.20/21,036.36 = 14,424.24/x
  3. Step 3: Cross multiply
    15,238.20x = 21,036.36 × 14,424.24
  4. Step 4: Simplify right side
    15,238.20x = 303,433,505.37
  5. Step 5: Solve for x
    x = 303,433,505.37/15,238.20
  6. Step 6: Final answer
    x = 19,912.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.