Home / 30,368.39-41,909.01-16,940.21

Finding the Fourth Proportional to 30,368.39, 41,909.01 and 16,940.21

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Solution

The fourth proportional to 30,368.39, 41,909.01 and 16,940.21 is: 23,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.39 : 41,909.01 = 16,940.21 : x
  2. Step 2: Convert to fraction form
    30,368.39/41,909.01 = 16,940.21/x
  3. Step 3: Cross multiply
    30,368.39x = 41,909.01 × 16,940.21
  4. Step 4: Simplify right side
    30,368.39x = 709,947,430.29
  5. Step 5: Solve for x
    x = 709,947,430.29/30,368.39
  6. Step 6: Final answer
    x = 23,377.84

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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.