Home / 39,461.08-54,455.39-21,556.16

Finding the Fourth Proportional to 39,461.08, 54,455.39 and 21,556.16

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Solution

The fourth proportional to 39,461.08, 54,455.39 and 21,556.16 is: 29,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.08 : 54,455.39 = 21,556.16 : x
  2. Step 2: Convert to fraction form
    39,461.08/54,455.39 = 21,556.16/x
  3. Step 3: Cross multiply
    39,461.08x = 54,455.39 × 21,556.16
  4. Step 4: Simplify right side
    39,461.08x = 1,173,848,991.92
  5. Step 5: Solve for x
    x = 1,173,848,991.92/39,461.08
  6. Step 6: Final answer
    x = 29,747.01

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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.