Home / 30,820.85-42,532.82-16,673.69

Finding the Fourth Proportional to 30,820.85, 42,532.82 and 16,673.69

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Solution

The fourth proportional to 30,820.85, 42,532.82 and 16,673.69 is: 23,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.85 : 42,532.82 = 16,673.69 : x
  2. Step 2: Convert to fraction form
    30,820.85/42,532.82 = 16,673.69/x
  3. Step 3: Cross multiply
    30,820.85x = 42,532.82 × 16,673.69
  4. Step 4: Simplify right side
    30,820.85x = 709,179,203.52
  5. Step 5: Solve for x
    x = 709,179,203.52/30,820.85
  6. Step 6: Final answer
    x = 23,009.73

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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.