Home / 39,801.75-54,926.69-21,652.64

Finding the Fourth Proportional to 39,801.75, 54,926.69 and 21,652.64

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Solution

The fourth proportional to 39,801.75, 54,926.69 and 21,652.64 is: 29,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.75 : 54,926.69 = 21,652.64 : x
  2. Step 2: Convert to fraction form
    39,801.75/54,926.69 = 21,652.64/x
  3. Step 3: Cross multiply
    39,801.75x = 54,926.69 × 21,652.64
  4. Step 4: Simplify right side
    39,801.75x = 1,189,307,656.34
  5. Step 5: Solve for x
    x = 1,189,307,656.34/39,801.75
  6. Step 6: Final answer
    x = 29,880.79

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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.