Home / 31,088.25-46,679.09-18,663.86

Finding the Fourth Proportional to 31,088.25, 46,679.09 and 18,663.86

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Solution

The fourth proportional to 31,088.25, 46,679.09 and 18,663.86 is: 28,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,088.25 : 46,679.09 = 18,663.86 : x
  2. Step 2: Convert to fraction form
    31,088.25/46,679.09 = 18,663.86/x
  3. Step 3: Cross multiply
    31,088.25x = 46,679.09 × 18,663.86
  4. Step 4: Simplify right side
    31,088.25x = 871,212,024.07
  5. Step 5: Solve for x
    x = 871,212,024.07/31,088.25
  6. Step 6: Final answer
    x = 28,023.84

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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.