Home / 40,971.86-61,466-12,898.98

Finding the Fourth Proportional to 40,971.86, 61,466 and 12,898.98

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Solution

The fourth proportional to 40,971.86, 61,466 and 12,898.98 is: 19,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,971.86 : 61,466 = 12,898.98 : x
  2. Step 2: Convert to fraction form
    40,971.86/61,466 = 12,898.98/x
  3. Step 3: Cross multiply
    40,971.86x = 61,466 × 12,898.98
  4. Step 4: Simplify right side
    40,971.86x = 792,848,704.68
  5. Step 5: Solve for x
    x = 792,848,704.68/40,971.86
  6. Step 6: Final answer
    x = 19,351.05

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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.