Home / 39,343.32-54,293.54-21,438.27

Finding the Fourth Proportional to 39,343.32, 54,293.54 and 21,438.27

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Solution

The fourth proportional to 39,343.32, 54,293.54 and 21,438.27 is: 29,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.32 : 54,293.54 = 21,438.27 : x
  2. Step 2: Convert to fraction form
    39,343.32/54,293.54 = 21,438.27/x
  3. Step 3: Cross multiply
    39,343.32x = 54,293.54 × 21,438.27
  4. Step 4: Simplify right side
    39,343.32x = 1,163,959,583.17
  5. Step 5: Solve for x
    x = 1,163,959,583.17/39,343.32
  6. Step 6: Final answer
    x = 29,584.68

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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.