Home / 30,186.59-45,220.98-19,766.75

Finding the Fourth Proportional to 30,186.59, 45,220.98 and 19,766.75

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Solution

The fourth proportional to 30,186.59, 45,220.98 and 19,766.75 is: 29,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.59 : 45,220.98 = 19,766.75 : x
  2. Step 2: Convert to fraction form
    30,186.59/45,220.98 = 19,766.75/x
  3. Step 3: Cross multiply
    30,186.59x = 45,220.98 × 19,766.75
  4. Step 4: Simplify right side
    30,186.59x = 893,871,806.42
  5. Step 5: Solve for x
    x = 893,871,806.42/30,186.59
  6. Step 6: Final answer
    x = 29,611.55

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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.