Home / 31,089.25-46,680.59-18,664.86

Finding the Fourth Proportional to 31,089.25, 46,680.59 and 18,664.86

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Solution

The fourth proportional to 31,089.25, 46,680.59 and 18,664.86 is: 28,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,089.25 : 46,680.59 = 18,664.86 : x
  2. Step 2: Convert to fraction form
    31,089.25/46,680.59 = 18,664.86/x
  3. Step 3: Cross multiply
    31,089.25x = 46,680.59 × 18,664.86
  4. Step 4: Simplify right side
    31,089.25x = 871,286,677.07
  5. Step 5: Solve for x
    x = 871,286,677.07/31,089.25
  6. Step 6: Final answer
    x = 28,025.34

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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.