Home / 19,805.09-29,679.66-10,426.19

Finding the Fourth Proportional to 19,805.09, 29,679.66 and 10,426.19

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Solution

The fourth proportional to 19,805.09, 29,679.66 and 10,426.19 is: 15,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.09 : 29,679.66 = 10,426.19 : x
  2. Step 2: Convert to fraction form
    19,805.09/29,679.66 = 10,426.19/x
  3. Step 3: Cross multiply
    19,805.09x = 29,679.66 × 10,426.19
  4. Step 4: Simplify right side
    19,805.09x = 309,445,625.90
  5. Step 5: Solve for x
    x = 309,445,625.90/19,805.09
  6. Step 6: Final answer
    x = 15,624.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.