Home / 22,637.88-31,235.40-13,683.60

Finding the Fourth Proportional to 22,637.88, 31,235.40 and 13,683.60

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Solution

The fourth proportional to 22,637.88, 31,235.40 and 13,683.60 is: 18,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.88 : 31,235.40 = 13,683.60 : x
  2. Step 2: Convert to fraction form
    22,637.88/31,235.40 = 13,683.60/x
  3. Step 3: Cross multiply
    22,637.88x = 31,235.40 × 13,683.60
  4. Step 4: Simplify right side
    22,637.88x = 427,412,719.44
  5. Step 5: Solve for x
    x = 427,412,719.44/22,637.88
  6. Step 6: Final answer
    x = 18,880.42

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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.