Home / 28,314.23-42,485.19-20,047.37

Finding the Fourth Proportional to 28,314.23, 42,485.19 and 20,047.37

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Solution

The fourth proportional to 28,314.23, 42,485.19 and 20,047.37 is: 30,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.23 : 42,485.19 = 20,047.37 : x
  2. Step 2: Convert to fraction form
    28,314.23/42,485.19 = 20,047.37/x
  3. Step 3: Cross multiply
    28,314.23x = 42,485.19 × 20,047.37
  4. Step 4: Simplify right side
    28,314.23x = 851,716,323.45
  5. Step 5: Solve for x
    x = 851,716,323.45/28,314.23
  6. Step 6: Final answer
    x = 30,080.86

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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.