Home / 57,928.23-86,919.35-20,516.63

Finding the Fourth Proportional to 57,928.23, 86,919.35 and 20,516.63

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Solution

The fourth proportional to 57,928.23, 86,919.35 and 20,516.63 is: 30,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,928.23 : 86,919.35 = 20,516.63 : x
  2. Step 2: Convert to fraction form
    57,928.23/86,919.35 = 20,516.63/x
  3. Step 3: Cross multiply
    57,928.23x = 86,919.35 × 20,516.63
  4. Step 4: Simplify right side
    57,928.23x = 1,783,291,606.61
  5. Step 5: Solve for x
    x = 1,783,291,606.61/57,928.23
  6. Step 6: Final answer
    x = 30,784.50

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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.