Home / 39,395.63-54,366.69-21,491.27

Finding the Fourth Proportional to 39,395.63, 54,366.69 and 21,491.27

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Solution

The fourth proportional to 39,395.63, 54,366.69 and 21,491.27 is: 29,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.63 : 54,366.69 = 21,491.27 : x
  2. Step 2: Convert to fraction form
    39,395.63/54,366.69 = 21,491.27/x
  3. Step 3: Cross multiply
    39,395.63x = 54,366.69 × 21,491.27
  4. Step 4: Simplify right side
    39,395.63x = 1,168,409,213.80
  5. Step 5: Solve for x
    x = 1,168,409,213.80/39,395.63
  6. Step 6: Final answer
    x = 29,658.35

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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.