Home / 35,623.01-53,422.81-13,128.50

Finding the Fourth Proportional to 35,623.01, 53,422.81 and 13,128.50

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Solution

The fourth proportional to 35,623.01, 53,422.81 and 13,128.50 is: 19,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,623.01 : 53,422.81 = 13,128.50 : x
  2. Step 2: Convert to fraction form
    35,623.01/53,422.81 = 13,128.50/x
  3. Step 3: Cross multiply
    35,623.01x = 53,422.81 × 13,128.50
  4. Step 4: Simplify right side
    35,623.01x = 701,361,361.09
  5. Step 5: Solve for x
    x = 701,361,361.09/35,623.01
  6. Step 6: Final answer
    x = 19,688.44

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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.