Home / 57,890.52-86,834.86-18,447.07

Finding the Fourth Proportional to 57,890.52, 86,834.86 and 18,447.07

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Solution

The fourth proportional to 57,890.52, 86,834.86 and 18,447.07 is: 27,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,890.52 : 86,834.86 = 18,447.07 : x
  2. Step 2: Convert to fraction form
    57,890.52/86,834.86 = 18,447.07/x
  3. Step 3: Cross multiply
    57,890.52x = 86,834.86 × 18,447.07
  4. Step 4: Simplify right side
    57,890.52x = 1,601,848,740.86
  5. Step 5: Solve for x
    x = 1,601,848,740.86/57,890.52
  6. Step 6: Final answer
    x = 27,670.31

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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.