Home / 39,920.72-59,887.24-13,619.32

Finding the Fourth Proportional to 39,920.72, 59,887.24 and 13,619.32

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Solution

The fourth proportional to 39,920.72, 59,887.24 and 13,619.32 is: 20,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.72 : 59,887.24 = 13,619.32 : x
  2. Step 2: Convert to fraction form
    39,920.72/59,887.24 = 13,619.32/x
  3. Step 3: Cross multiply
    39,920.72x = 59,887.24 × 13,619.32
  4. Step 4: Simplify right side
    39,920.72x = 815,623,485.48
  5. Step 5: Solve for x
    x = 815,623,485.48/39,920.72
  6. Step 6: Final answer
    x = 20,431.08

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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.