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Finding the Fourth Proportional to 57,873.79, 86,824.46 and 18,430.84

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Solution

The fourth proportional to 57,873.79, 86,824.46 and 18,430.84 is: 27,650.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,873.79 : 86,824.46 = 18,430.84 : x
  2. Step 2: Convert to fraction form
    57,873.79/86,824.46 = 18,430.84/x
  3. Step 3: Cross multiply
    57,873.79x = 86,824.46 × 18,430.84
  4. Step 4: Simplify right side
    57,873.79x = 1,600,247,730.35
  5. Step 5: Solve for x
    x = 1,600,247,730.35/57,873.79
  6. Step 6: Final answer
    x = 27,650.65

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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.