Home / 21,465.75-29,622.29-11,904.09

Finding the Fourth Proportional to 21,465.75, 29,622.29 and 11,904.09

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Solution

The fourth proportional to 21,465.75, 29,622.29 and 11,904.09 is: 16,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.75 : 29,622.29 = 11,904.09 : x
  2. Step 2: Convert to fraction form
    21,465.75/29,622.29 = 11,904.09/x
  3. Step 3: Cross multiply
    21,465.75x = 29,622.29 × 11,904.09
  4. Step 4: Simplify right side
    21,465.75x = 352,626,346.65
  5. Step 5: Solve for x
    x = 352,626,346.65/21,465.75
  6. Step 6: Final answer
    x = 16,427.40

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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.