Home / 40,990.05-61,488.67-12,533.42

Finding the Fourth Proportional to 40,990.05, 61,488.67 and 12,533.42

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Solution

The fourth proportional to 40,990.05, 61,488.67 and 12,533.42 is: 18,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990.05 : 61,488.67 = 12,533.42 : x
  2. Step 2: Convert to fraction form
    40,990.05/61,488.67 = 12,533.42/x
  3. Step 3: Cross multiply
    40,990.05x = 61,488.67 × 12,533.42
  4. Step 4: Simplify right side
    40,990.05x = 770,663,448.74
  5. Step 5: Solve for x
    x = 770,663,448.74/40,990.05
  6. Step 6: Final answer
    x = 18,801.23

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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.