Home / 39,556.40-54,587.62-21,407.10

Finding the Fourth Proportional to 39,556.40, 54,587.62 and 21,407.10

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Solution

The fourth proportional to 39,556.40, 54,587.62 and 21,407.10 is: 29,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.40 : 54,587.62 = 21,407.10 : x
  2. Step 2: Convert to fraction form
    39,556.40/54,587.62 = 21,407.10/x
  3. Step 3: Cross multiply
    39,556.40x = 54,587.62 × 21,407.10
  4. Step 4: Simplify right side
    39,556.40x = 1,168,562,640.10
  5. Step 5: Solve for x
    x = 1,168,562,640.10/39,556.40
  6. Step 6: Final answer
    x = 29,541.68

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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.