Home / 22,913.96-31,618.63-13,355.87

Finding the Fourth Proportional to 22,913.96, 31,618.63 and 13,355.87

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Solution

The fourth proportional to 22,913.96, 31,618.63 and 13,355.87 is: 18,429.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,913.96 : 31,618.63 = 13,355.87 : x
  2. Step 2: Convert to fraction form
    22,913.96/31,618.63 = 13,355.87/x
  3. Step 3: Cross multiply
    22,913.96x = 31,618.63 × 13,355.87
  4. Step 4: Simplify right side
    22,913.96x = 422,294,311.86
  5. Step 5: Solve for x
    x = 422,294,311.86/22,913.96
  6. Step 6: Final answer
    x = 18,429.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.