Home / 21,004.32-31,525.92-10,623.36

Finding the Fourth Proportional to 21,004.32, 31,525.92 and 10,623.36

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Solution

The fourth proportional to 21,004.32, 31,525.92 and 10,623.36 is: 15,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.32 : 31,525.92 = 10,623.36 : x
  2. Step 2: Convert to fraction form
    21,004.32/31,525.92 = 10,623.36/x
  3. Step 3: Cross multiply
    21,004.32x = 31,525.92 × 10,623.36
  4. Step 4: Simplify right side
    21,004.32x = 334,911,197.49
  5. Step 5: Solve for x
    x = 334,911,197.49/21,004.32
  6. Step 6: Final answer
    x = 15,944.87

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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.