Home / 30,420.78-41,984.91-17,849.58

Finding the Fourth Proportional to 30,420.78, 41,984.91 and 17,849.58

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Solution

The fourth proportional to 30,420.78, 41,984.91 and 17,849.58 is: 24,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,420.78 : 41,984.91 = 17,849.58 : x
  2. Step 2: Convert to fraction form
    30,420.78/41,984.91 = 17,849.58/x
  3. Step 3: Cross multiply
    30,420.78x = 41,984.91 × 17,849.58
  4. Step 4: Simplify right side
    30,420.78x = 749,413,009.84
  5. Step 5: Solve for x
    x = 749,413,009.84/30,420.78
  6. Step 6: Final answer
    x = 24,634.90

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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.