Home / 18,289.48-27,431.40-5,807.86

Finding the Fourth Proportional to 18,289.48, 27,431.40 and 5,807.86

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Solution

The fourth proportional to 18,289.48, 27,431.40 and 5,807.86 is: 8,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.48 : 27,431.40 = 5,807.86 : x
  2. Step 2: Convert to fraction form
    18,289.48/27,431.40 = 5,807.86/x
  3. Step 3: Cross multiply
    18,289.48x = 27,431.40 × 5,807.86
  4. Step 4: Simplify right side
    18,289.48x = 159,317,730.80
  5. Step 5: Solve for x
    x = 159,317,730.80/18,289.48
  6. Step 6: Final answer
    x = 8,710.89

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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.