Home / 39,586.27-54,629.15-21,437.20

Finding the Fourth Proportional to 39,586.27, 54,629.15 and 21,437.20

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Solution

The fourth proportional to 39,586.27, 54,629.15 and 21,437.20 is: 29,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,586.27 : 54,629.15 = 21,437.20 : x
  2. Step 2: Convert to fraction form
    39,586.27/54,629.15 = 21,437.20/x
  3. Step 3: Cross multiply
    39,586.27x = 54,629.15 × 21,437.20
  4. Step 4: Simplify right side
    39,586.27x = 1,171,096,014.38
  5. Step 5: Solve for x
    x = 1,171,096,014.38/39,586.27
  6. Step 6: Final answer
    x = 29,583.39

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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.