Home / 31,827.40-43,925.28-18,216.69

Finding the Fourth Proportional to 31,827.40, 43,925.28 and 18,216.69

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Solution

The fourth proportional to 31,827.40, 43,925.28 and 18,216.69 is: 25,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.40 : 43,925.28 = 18,216.69 : x
  2. Step 2: Convert to fraction form
    31,827.40/43,925.28 = 18,216.69/x
  3. Step 3: Cross multiply
    31,827.40x = 43,925.28 × 18,216.69
  4. Step 4: Simplify right side
    31,827.40x = 800,173,208.92
  5. Step 5: Solve for x
    x = 800,173,208.92/31,827.40
  6. Step 6: Final answer
    x = 25,141.02

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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.