Home / 21,465.03-29,623.62-12,512.35

Finding the Fourth Proportional to 21,465.03, 29,623.62 and 12,512.35

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Solution

The fourth proportional to 21,465.03, 29,623.62 and 12,512.35 is: 17,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.03 : 29,623.62 = 12,512.35 : x
  2. Step 2: Convert to fraction form
    21,465.03/29,623.62 = 12,512.35/x
  3. Step 3: Cross multiply
    21,465.03x = 29,623.62 × 12,512.35
  4. Step 4: Simplify right side
    21,465.03x = 370,661,027.65
  5. Step 5: Solve for x
    x = 370,661,027.65/21,465.03
  6. Step 6: Final answer
    x = 17,268.13

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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.