Home / 40,976.89-61,465.41-12,899.45

Finding the Fourth Proportional to 40,976.89, 61,465.41 and 12,899.45

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Solution

The fourth proportional to 40,976.89, 61,465.41 and 12,899.45 is: 19,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,976.89 : 61,465.41 = 12,899.45 : x
  2. Step 2: Convert to fraction form
    40,976.89/61,465.41 = 12,899.45/x
  3. Step 3: Cross multiply
    40,976.89x = 61,465.41 × 12,899.45
  4. Step 4: Simplify right side
    40,976.89x = 792,870,136.69
  5. Step 5: Solve for x
    x = 792,870,136.69/40,976.89
  6. Step 6: Final answer
    x = 19,349.20

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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.