Home / 39,621.36-59,469.03-20,915.22

Finding the Fourth Proportional to 39,621.36, 59,469.03 and 20,915.22

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Solution

The fourth proportional to 39,621.36, 59,469.03 and 20,915.22 is: 31,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,621.36 : 59,469.03 = 20,915.22 : x
  2. Step 2: Convert to fraction form
    39,621.36/59,469.03 = 20,915.22/x
  3. Step 3: Cross multiply
    39,621.36x = 59,469.03 × 20,915.22
  4. Step 4: Simplify right side
    39,621.36x = 1,243,807,845.64
  5. Step 5: Solve for x
    x = 1,243,807,845.64/39,621.36
  6. Step 6: Final answer
    x = 31,392.36

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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.