Home / 17,438.12-24,021.89-12,643.97

Finding the Fourth Proportional to 17,438.12, 24,021.89 and 12,643.97

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Solution

The fourth proportional to 17,438.12, 24,021.89 and 12,643.97 is: 17,417.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,438.12 : 24,021.89 = 12,643.97 : x
  2. Step 2: Convert to fraction form
    17,438.12/24,021.89 = 12,643.97/x
  3. Step 3: Cross multiply
    17,438.12x = 24,021.89 × 12,643.97
  4. Step 4: Simplify right side
    17,438.12x = 303,732,053.34
  5. Step 5: Solve for x
    x = 303,732,053.34/17,438.12
  6. Step 6: Final answer
    x = 17,417.71

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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.