Home / 30,385.58-41,934.21-16,959.45

Finding the Fourth Proportional to 30,385.58, 41,934.21 and 16,959.45

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Solution

The fourth proportional to 30,385.58, 41,934.21 and 16,959.45 is: 23,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.58 : 41,934.21 = 16,959.45 : x
  2. Step 2: Convert to fraction form
    30,385.58/41,934.21 = 16,959.45/x
  3. Step 3: Cross multiply
    30,385.58x = 41,934.21 × 16,959.45
  4. Step 4: Simplify right side
    30,385.58x = 711,181,113.50
  5. Step 5: Solve for x
    x = 711,181,113.50/30,385.58
  6. Step 6: Final answer
    x = 23,405.22

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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.