Home / 39,426.40-54,409.72-21,522.36

Finding the Fourth Proportional to 39,426.40, 54,409.72 and 21,522.36

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Solution

The fourth proportional to 39,426.40, 54,409.72 and 21,522.36 is: 29,701.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,426.40 : 54,409.72 = 21,522.36 : x
  2. Step 2: Convert to fraction form
    39,426.40/54,409.72 = 21,522.36/x
  3. Step 3: Cross multiply
    39,426.40x = 54,409.72 × 21,522.36
  4. Step 4: Simplify right side
    39,426.40x = 1,171,025,581.34
  5. Step 5: Solve for x
    x = 1,171,025,581.34/39,426.40
  6. Step 6: Final answer
    x = 29,701.56

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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.