Home / 30,186.09-45,220.23-19,766.25

Finding the Fourth Proportional to 30,186.09, 45,220.23 and 19,766.25

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Solution

The fourth proportional to 30,186.09, 45,220.23 and 19,766.25 is: 29,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.09 : 45,220.23 = 19,766.25 : x
  2. Step 2: Convert to fraction form
    30,186.09/45,220.23 = 19,766.25/x
  3. Step 3: Cross multiply
    30,186.09x = 45,220.23 × 19,766.25
  4. Step 4: Simplify right side
    30,186.09x = 893,834,371.24
  5. Step 5: Solve for x
    x = 893,834,371.24/30,186.09
  6. Step 6: Final answer
    x = 29,610.80

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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.