Home / 30,390.60-41,940.81-16,962.42

Finding the Fourth Proportional to 30,390.60, 41,940.81 and 16,962.42

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Solution

The fourth proportional to 30,390.60, 41,940.81 and 16,962.42 is: 23,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.60 : 41,940.81 = 16,962.42 : x
  2. Step 2: Convert to fraction form
    30,390.60/41,940.81 = 16,962.42/x
  3. Step 3: Cross multiply
    30,390.60x = 41,940.81 × 16,962.42
  4. Step 4: Simplify right side
    30,390.60x = 711,417,634.36
  5. Step 5: Solve for x
    x = 711,417,634.36/30,390.60
  6. Step 6: Final answer
    x = 23,409.13

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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.