Home / 39,235.02-54,143.68-21,330.48

Finding the Fourth Proportional to 39,235.02, 54,143.68 and 21,330.48

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Solution

The fourth proportional to 39,235.02, 54,143.68 and 21,330.48 is: 29,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.02 : 54,143.68 = 21,330.48 : x
  2. Step 2: Convert to fraction form
    39,235.02/54,143.68 = 21,330.48/x
  3. Step 3: Cross multiply
    39,235.02x = 54,143.68 × 21,330.48
  4. Step 4: Simplify right side
    39,235.02x = 1,154,910,683.37
  5. Step 5: Solve for x
    x = 1,154,910,683.37/39,235.02
  6. Step 6: Final answer
    x = 29,435.71

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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.