Home / 22,606.12-31,189.97-13,045.28

Finding the Fourth Proportional to 22,606.12, 31,189.97 and 13,045.28

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Solution

The fourth proportional to 22,606.12, 31,189.97 and 13,045.28 is: 17,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,606.12 : 31,189.97 = 13,045.28 : x
  2. Step 2: Convert to fraction form
    22,606.12/31,189.97 = 13,045.28/x
  3. Step 3: Cross multiply
    22,606.12x = 31,189.97 × 13,045.28
  4. Step 4: Simplify right side
    22,606.12x = 406,881,826.62
  5. Step 5: Solve for x
    x = 406,881,826.62/22,606.12
  6. Step 6: Final answer
    x = 17,998.75

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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.