Home / 39,302.19-54,235.32-21,397.26

Finding the Fourth Proportional to 39,302.19, 54,235.32 and 21,397.26

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Solution

The fourth proportional to 39,302.19, 54,235.32 and 21,397.26 is: 29,527.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,302.19 : 54,235.32 = 21,397.26 : x
  2. Step 2: Convert to fraction form
    39,302.19/54,235.32 = 21,397.26/x
  3. Step 3: Cross multiply
    39,302.19x = 54,235.32 × 21,397.26
  4. Step 4: Simplify right side
    39,302.19x = 1,160,487,243.22
  5. Step 5: Solve for x
    x = 1,160,487,243.22/39,302.19
  6. Step 6: Final answer
    x = 29,527.29

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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.