Home / 30,197.08-45,300.92-11,478.75

Finding the Fourth Proportional to 30,197.08, 45,300.92 and 11,478.75

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Solution

The fourth proportional to 30,197.08, 45,300.92 and 11,478.75 is: 17,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.08 : 45,300.92 = 11,478.75 : x
  2. Step 2: Convert to fraction form
    30,197.08/45,300.92 = 11,478.75/x
  3. Step 3: Cross multiply
    30,197.08x = 45,300.92 × 11,478.75
  4. Step 4: Simplify right side
    30,197.08x = 519,997,651.55
  5. Step 5: Solve for x
    x = 519,997,651.55/30,197.08
  6. Step 6: Final answer
    x = 17,220.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.