Home / 21,003.58-31,563.24-11,150.24

Finding the Fourth Proportional to 21,003.58, 31,563.24 and 11,150.24

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Solution

The fourth proportional to 21,003.58, 31,563.24 and 11,150.24 is: 16,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.58 : 31,563.24 = 11,150.24 : x
  2. Step 2: Convert to fraction form
    21,003.58/31,563.24 = 11,150.24/x
  3. Step 3: Cross multiply
    21,003.58x = 31,563.24 × 11,150.24
  4. Step 4: Simplify right side
    21,003.58x = 351,937,701.18
  5. Step 5: Solve for x
    x = 351,937,701.18/21,003.58
  6. Step 6: Final answer
    x = 16,756.08

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1.5x scale

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.