Home / 31,078.08-46,657.76-18,450.89

Finding the Fourth Proportional to 31,078.08, 46,657.76 and 18,450.89

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Solution

The fourth proportional to 31,078.08, 46,657.76 and 18,450.89 is: 27,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,078.08 : 46,657.76 = 18,450.89 : x
  2. Step 2: Convert to fraction form
    31,078.08/46,657.76 = 18,450.89/x
  3. Step 3: Cross multiply
    31,078.08x = 46,657.76 × 18,450.89
  4. Step 4: Simplify right side
    31,078.08x = 860,876,871.86
  5. Step 5: Solve for x
    x = 860,876,871.86/31,078.08
  6. Step 6: Final answer
    x = 27,700.45

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1.5x scale

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.