Home / 39,369.51-54,331.63-21,465.54

Finding the Fourth Proportional to 39,369.51, 54,331.63 and 21,465.54

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Solution

The fourth proportional to 39,369.51, 54,331.63 and 21,465.54 is: 29,623.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.51 : 54,331.63 = 21,465.54 : x
  2. Step 2: Convert to fraction form
    39,369.51/54,331.63 = 21,465.54/x
  3. Step 3: Cross multiply
    39,369.51x = 54,331.63 × 21,465.54
  4. Step 4: Simplify right side
    39,369.51x = 1,166,257,723.37
  5. Step 5: Solve for x
    x = 1,166,257,723.37/39,369.51
  6. Step 6: Final answer
    x = 29,623.37

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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.