Home / 36,018.34-49,697.32-20,902.21

Finding the Fourth Proportional to 36,018.34, 49,697.32 and 20,902.21

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Solution

The fourth proportional to 36,018.34, 49,697.32 and 20,902.21 is: 28,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.34 : 49,697.32 = 20,902.21 : x
  2. Step 2: Convert to fraction form
    36,018.34/49,697.32 = 20,902.21/x
  3. Step 3: Cross multiply
    36,018.34x = 49,697.32 × 20,902.21
  4. Step 4: Simplify right side
    36,018.34x = 1,038,783,819.08
  5. Step 5: Solve for x
    x = 1,038,783,819.08/36,018.34
  6. Step 6: Final answer
    x = 28,840.41

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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.