Home / 21,352.04-29,465.81-11,920.60

Finding the Fourth Proportional to 21,352.04, 29,465.81 and 11,920.60

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Solution

The fourth proportional to 21,352.04, 29,465.81 and 11,920.60 is: 16,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.04 : 29,465.81 = 11,920.60 : x
  2. Step 2: Convert to fraction form
    21,352.04/29,465.81 = 11,920.60/x
  3. Step 3: Cross multiply
    21,352.04x = 29,465.81 × 11,920.60
  4. Step 4: Simplify right side
    21,352.04x = 351,250,134.69
  5. Step 5: Solve for x
    x = 351,250,134.69/21,352.04
  6. Step 6: Final answer
    x = 16,450.43

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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.