Home / 36,128.63-49,851.64-20,212.13

Finding the Fourth Proportional to 36,128.63, 49,851.64 and 20,212.13

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Solution

The fourth proportional to 36,128.63, 49,851.64 and 20,212.13 is: 27,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.63 : 49,851.64 = 20,212.13 : x
  2. Step 2: Convert to fraction form
    36,128.63/49,851.64 = 20,212.13/x
  3. Step 3: Cross multiply
    36,128.63x = 49,851.64 × 20,212.13
  4. Step 4: Simplify right side
    36,128.63x = 1,007,607,828.39
  5. Step 5: Solve for x
    x = 1,007,607,828.39/36,128.63
  6. Step 6: Final answer
    x = 27,889.46

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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.