Home / 31,582.05-43,585.74-18,155.76

Finding the Fourth Proportional to 31,582.05, 43,585.74 and 18,155.76

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Solution

The fourth proportional to 31,582.05, 43,585.74 and 18,155.76 is: 25,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.05 : 43,585.74 = 18,155.76 : x
  2. Step 2: Convert to fraction form
    31,582.05/43,585.74 = 18,155.76/x
  3. Step 3: Cross multiply
    31,582.05x = 43,585.74 × 18,155.76
  4. Step 4: Simplify right side
    31,582.05x = 791,332,234.86
  5. Step 5: Solve for x
    x = 791,332,234.86/31,582.05
  6. Step 6: Final answer
    x = 25,056.39

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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.