Home / 21,098.10-31,647.24-11,752.32

Finding the Fourth Proportional to 21,098.10, 31,647.24 and 11,752.32

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Solution

The fourth proportional to 21,098.10, 31,647.24 and 11,752.32 is: 17,628.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.10 : 31,647.24 = 11,752.32 : x
  2. Step 2: Convert to fraction form
    21,098.10/31,647.24 = 11,752.32/x
  3. Step 3: Cross multiply
    21,098.10x = 31,647.24 × 11,752.32
  4. Step 4: Simplify right side
    21,098.10x = 371,928,491.60
  5. Step 5: Solve for x
    x = 371,928,491.60/21,098.10
  6. Step 6: Final answer
    x = 17,628.53

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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.