Home / 30,601.80-45,999.90-28,852.20

Finding the Fourth Proportional to 30,601.80, 45,999.90 and 28,852.20

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Solution

The fourth proportional to 30,601.80, 45,999.90 and 28,852.20 is: 43,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.80 : 45,999.90 = 28,852.20 : x
  2. Step 2: Convert to fraction form
    30,601.80/45,999.90 = 28,852.20/x
  3. Step 3: Cross multiply
    30,601.80x = 45,999.90 × 28,852.20
  4. Step 4: Simplify right side
    30,601.80x = 1,327,198,314.78
  5. Step 5: Solve for x
    x = 1,327,198,314.78/30,601.80
  6. Step 6: Final answer
    x = 43,369.94

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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.