Home / 30,111.89-41,552.33-16,681.89

Finding the Fourth Proportional to 30,111.89, 41,552.33 and 16,681.89

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Solution

The fourth proportional to 30,111.89, 41,552.33 and 16,681.89 is: 23,019.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.89 : 41,552.33 = 16,681.89 : x
  2. Step 2: Convert to fraction form
    30,111.89/41,552.33 = 16,681.89/x
  3. Step 3: Cross multiply
    30,111.89x = 41,552.33 × 16,681.89
  4. Step 4: Simplify right side
    30,111.89x = 693,171,398.30
  5. Step 5: Solve for x
    x = 693,171,398.30/30,111.89
  6. Step 6: Final answer
    x = 23,019.86

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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.