Home / 30,533.64-42,136.08-17,104.80

Finding the Fourth Proportional to 30,533.64, 42,136.08 and 17,104.80

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Solution

The fourth proportional to 30,533.64, 42,136.08 and 17,104.80 is: 23,604.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,533.64 : 42,136.08 = 17,104.80 : x
  2. Step 2: Convert to fraction form
    30,533.64/42,136.08 = 17,104.80/x
  3. Step 3: Cross multiply
    30,533.64x = 42,136.08 × 17,104.80
  4. Step 4: Simplify right side
    30,533.64x = 720,729,221.18
  5. Step 5: Solve for x
    x = 720,729,221.18/30,533.64
  6. Step 6: Final answer
    x = 23,604.43

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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.