Home / 39,556.50-54,585.90-21,648.06

Finding the Fourth Proportional to 39,556.50, 54,585.90 and 21,648.06

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Solution

The fourth proportional to 39,556.50, 54,585.90 and 21,648.06 is: 29,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.50 : 54,585.90 = 21,648.06 : x
  2. Step 2: Convert to fraction form
    39,556.50/54,585.90 = 21,648.06/x
  3. Step 3: Cross multiply
    39,556.50x = 54,585.90 × 21,648.06
  4. Step 4: Simplify right side
    39,556.50x = 1,181,678,838.35
  5. Step 5: Solve for x
    x = 1,181,678,838.35/39,556.50
  6. Step 6: Final answer
    x = 29,873.19

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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.