Home / 27,603.94-38,090.58-15,505.78

Finding the Fourth Proportional to 27,603.94, 38,090.58 and 15,505.78

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Solution

The fourth proportional to 27,603.94, 38,090.58 and 15,505.78 is: 21,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,603.94 : 38,090.58 = 15,505.78 : x
  2. Step 2: Convert to fraction form
    27,603.94/38,090.58 = 15,505.78/x
  3. Step 3: Cross multiply
    27,603.94x = 38,090.58 × 15,505.78
  4. Step 4: Simplify right side
    27,603.94x = 590,624,162.40
  5. Step 5: Solve for x
    x = 590,624,162.40/27,603.94
  6. Step 6: Final answer
    x = 21,396.37

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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.