Home / 39,921.45-59,887.64-13,619.13

Finding the Fourth Proportional to 39,921.45, 59,887.64 and 13,619.13

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Solution

The fourth proportional to 39,921.45, 59,887.64 and 13,619.13 is: 20,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.45 : 59,887.64 = 13,619.13 : x
  2. Step 2: Convert to fraction form
    39,921.45/59,887.64 = 13,619.13/x
  3. Step 3: Cross multiply
    39,921.45x = 59,887.64 × 13,619.13
  4. Step 4: Simplify right side
    39,921.45x = 815,617,554.55
  5. Step 5: Solve for x
    x = 815,617,554.55/39,921.45
  6. Step 6: Final answer
    x = 20,430.56

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1.5x scale

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.