Home / 39,293.02-54,222.78-21,388.24

Finding the Fourth Proportional to 39,293.02, 54,222.78 and 21,388.24

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Solution

The fourth proportional to 39,293.02, 54,222.78 and 21,388.24 is: 29,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.02 : 54,222.78 = 21,388.24 : x
  2. Step 2: Convert to fraction form
    39,293.02/54,222.78 = 21,388.24/x
  3. Step 3: Cross multiply
    39,293.02x = 54,222.78 × 21,388.24
  4. Step 4: Simplify right side
    39,293.02x = 1,159,729,832.11
  5. Step 5: Solve for x
    x = 1,159,729,832.11/39,293.02
  6. Step 6: Final answer
    x = 29,514.91

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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.