Home / 36,013.60-49,678.80-21,106.72

Finding the Fourth Proportional to 36,013.60, 49,678.80 and 21,106.72

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Solution

The fourth proportional to 36,013.60, 49,678.80 and 21,106.72 is: 29,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,013.60 : 49,678.80 = 21,106.72 : x
  2. Step 2: Convert to fraction form
    36,013.60/49,678.80 = 21,106.72/x
  3. Step 3: Cross multiply
    36,013.60x = 49,678.80 × 21,106.72
  4. Step 4: Simplify right side
    36,013.60x = 1,048,556,521.54
  5. Step 5: Solve for x
    x = 1,048,556,521.54/36,013.60
  6. Step 6: Final answer
    x = 29,115.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.