Home / 21,207.07-29,259.19-12,251.30

Finding the Fourth Proportional to 21,207.07, 29,259.19 and 12,251.30

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Solution

The fourth proportional to 21,207.07, 29,259.19 and 12,251.30 is: 16,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.07 : 29,259.19 = 12,251.30 : x
  2. Step 2: Convert to fraction form
    21,207.07/29,259.19 = 12,251.30/x
  3. Step 3: Cross multiply
    21,207.07x = 29,259.19 × 12,251.30
  4. Step 4: Simplify right side
    21,207.07x = 358,463,187.59
  5. Step 5: Solve for x
    x = 358,463,187.59/21,207.07
  6. Step 6: Final answer
    x = 16,903.01

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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.