Home / 30,414.80-45,600.08-20,529.68

Finding the Fourth Proportional to 30,414.80, 45,600.08 and 20,529.68

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Solution

The fourth proportional to 30,414.80, 45,600.08 and 20,529.68 is: 30,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,414.80 : 45,600.08 = 20,529.68 : x
  2. Step 2: Convert to fraction form
    30,414.80/45,600.08 = 20,529.68/x
  3. Step 3: Cross multiply
    30,414.80x = 45,600.08 × 20,529.68
  4. Step 4: Simplify right side
    30,414.80x = 936,155,050.37
  5. Step 5: Solve for x
    x = 936,155,050.37/30,414.80
  6. Step 6: Final answer
    x = 30,779.59

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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.