Home / 36,820.80-55,166.40-30,211.20

Finding the Fourth Proportional to 36,820.80, 55,166.40 and 30,211.20

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Solution

The fourth proportional to 36,820.80, 55,166.40 and 30,211.20 is: 45,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,820.80 : 55,166.40 = 30,211.20 : x
  2. Step 2: Convert to fraction form
    36,820.80/55,166.40 = 30,211.20/x
  3. Step 3: Cross multiply
    36,820.80x = 55,166.40 × 30,211.20
  4. Step 4: Simplify right side
    36,820.80x = 1,666,643,143.68
  5. Step 5: Solve for x
    x = 1,666,643,143.68/36,820.80
  6. Step 6: Final answer
    x = 45,263.63

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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.