Home / 39,302.23-54,238.21-21,397.54

Finding the Fourth Proportional to 39,302.23, 54,238.21 and 21,397.54

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Solution

The fourth proportional to 39,302.23, 54,238.21 and 21,397.54 is: 29,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.23 : 54,238.21 = 21,397.54 : x
  2. Step 2: Convert to fraction form
    39,302.23/54,238.21 = 21,397.54/x
  3. Step 3: Cross multiply
    39,302.23x = 54,238.21 × 21,397.54
  4. Step 4: Simplify right side
    39,302.23x = 1,160,564,268.00
  5. Step 5: Solve for x
    x = 1,160,564,268.00/39,302.23
  6. Step 6: Final answer
    x = 29,529.22

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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.