Home / 39,478.89-54,483.46-22,255.51

Finding the Fourth Proportional to 39,478.89, 54,483.46 and 22,255.51

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Solution

The fourth proportional to 39,478.89, 54,483.46 and 22,255.51 is: 30,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.89 : 54,483.46 = 22,255.51 : x
  2. Step 2: Convert to fraction form
    39,478.89/54,483.46 = 22,255.51/x
  3. Step 3: Cross multiply
    39,478.89x = 54,483.46 × 22,255.51
  4. Step 4: Simplify right side
    39,478.89x = 1,212,556,997.02
  5. Step 5: Solve for x
    x = 1,212,556,997.02/39,478.89
  6. Step 6: Final answer
    x = 30,714.06

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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.