Home / 39,461.28-54,456.36-21,556.08

Finding the Fourth Proportional to 39,461.28, 54,456.36 and 21,556.08

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Solution

The fourth proportional to 39,461.28, 54,456.36 and 21,556.08 is: 29,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.28 : 54,456.36 = 21,556.08 : x
  2. Step 2: Convert to fraction form
    39,461.28/54,456.36 = 21,556.08/x
  3. Step 3: Cross multiply
    39,461.28x = 54,456.36 × 21,556.08
  4. Step 4: Simplify right side
    39,461.28x = 1,173,865,652.67
  5. Step 5: Solve for x
    x = 1,173,865,652.67/39,461.28
  6. Step 6: Final answer
    x = 29,747.28

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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.