Home / 31,582.50-43,579.18-18,154.32

Finding the Fourth Proportional to 31,582.50, 43,579.18 and 18,154.32

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Solution

The fourth proportional to 31,582.50, 43,579.18 and 18,154.32 is: 25,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.50 : 43,579.18 = 18,154.32 : x
  2. Step 2: Convert to fraction form
    31,582.50/43,579.18 = 18,154.32/x
  3. Step 3: Cross multiply
    31,582.50x = 43,579.18 × 18,154.32
  4. Step 4: Simplify right side
    31,582.50x = 791,150,379.06
  5. Step 5: Solve for x
    x = 791,150,379.06/31,582.50
  6. Step 6: Final answer
    x = 25,050.28

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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.