Home / 39,235.42-54,145.46-21,330.38

Finding the Fourth Proportional to 39,235.42, 54,145.46 and 21,330.38

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Solution

The fourth proportional to 39,235.42, 54,145.46 and 21,330.38 is: 29,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.42 : 54,145.46 = 21,330.38 : x
  2. Step 2: Convert to fraction form
    39,235.42/54,145.46 = 21,330.38/x
  3. Step 3: Cross multiply
    39,235.42x = 54,145.46 × 21,330.38
  4. Step 4: Simplify right side
    39,235.42x = 1,154,943,425.76
  5. Step 5: Solve for x
    x = 1,154,943,425.76/39,235.42
  6. Step 6: Final answer
    x = 29,436.25

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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.