Home / 21,035.08-29,020.26-12,081.16

Finding the Fourth Proportional to 21,035.08, 29,020.26 and 12,081.16

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Solution

The fourth proportional to 21,035.08, 29,020.26 and 12,081.16 is: 16,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.08 : 29,020.26 = 12,081.16 : x
  2. Step 2: Convert to fraction form
    21,035.08/29,020.26 = 12,081.16/x
  3. Step 3: Cross multiply
    21,035.08x = 29,020.26 × 12,081.16
  4. Step 4: Simplify right side
    21,035.08x = 350,598,404.30
  5. Step 5: Solve for x
    x = 350,598,404.30/21,035.08
  6. Step 6: Final answer
    x = 16,667.32

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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.