Home / 38,618.56-57,928.85-12,323.28

Finding the Fourth Proportional to 38,618.56, 57,928.85 and 12,323.28

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Solution

The fourth proportional to 38,618.56, 57,928.85 and 12,323.28 is: 18,485.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618.56 : 57,928.85 = 12,323.28 : x
  2. Step 2: Convert to fraction form
    38,618.56/57,928.85 = 12,323.28/x
  3. Step 3: Cross multiply
    38,618.56x = 57,928.85 × 12,323.28
  4. Step 4: Simplify right side
    38,618.56x = 713,873,438.63
  5. Step 5: Solve for x
    x = 713,873,438.63/38,618.56
  6. Step 6: Final answer
    x = 18,485.24

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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.