Home / 39,531.71-54,551.44-21,623.15

Finding the Fourth Proportional to 39,531.71, 54,551.44 and 21,623.15

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Solution

The fourth proportional to 39,531.71, 54,551.44 and 21,623.15 is: 29,838.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.71 : 54,551.44 = 21,623.15 : x
  2. Step 2: Convert to fraction form
    39,531.71/54,551.44 = 21,623.15/x
  3. Step 3: Cross multiply
    39,531.71x = 54,551.44 × 21,623.15
  4. Step 4: Simplify right side
    39,531.71x = 1,179,574,133.24
  5. Step 5: Solve for x
    x = 1,179,574,133.24/39,531.71
  6. Step 6: Final answer
    x = 29,838.68

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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.