Home / 30,010.03-45,021.74-11,290.23

Finding the Fourth Proportional to 30,010.03, 45,021.74 and 11,290.23

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Solution

The fourth proportional to 30,010.03, 45,021.74 and 11,290.23 is: 16,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.03 : 45,021.74 = 11,290.23 : x
  2. Step 2: Convert to fraction form
    30,010.03/45,021.74 = 11,290.23/x
  3. Step 3: Cross multiply
    30,010.03x = 45,021.74 × 11,290.23
  4. Step 4: Simplify right side
    30,010.03x = 508,305,799.60
  5. Step 5: Solve for x
    x = 508,305,799.60/30,010.03
  6. Step 6: Final answer
    x = 16,937.86

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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.