Home / 39,369.49-54,330.21-21,464.62

Finding the Fourth Proportional to 39,369.49, 54,330.21 and 21,464.62

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Solution

The fourth proportional to 39,369.49, 54,330.21 and 21,464.62 is: 29,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.49 : 54,330.21 = 21,464.62 : x
  2. Step 2: Convert to fraction form
    39,369.49/54,330.21 = 21,464.62/x
  3. Step 3: Cross multiply
    39,369.49x = 54,330.21 × 21,464.62
  4. Step 4: Simplify right side
    39,369.49x = 1,166,177,176.34
  5. Step 5: Solve for x
    x = 1,166,177,176.34/39,369.49
  6. Step 6: Final answer
    x = 29,621.35

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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.