Home / 39,730.24-54,828.04-21,825.44

Finding the Fourth Proportional to 39,730.24, 54,828.04 and 21,825.44

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Solution

The fourth proportional to 39,730.24, 54,828.04 and 21,825.44 is: 30,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.24 : 54,828.04 = 21,825.44 : x
  2. Step 2: Convert to fraction form
    39,730.24/54,828.04 = 21,825.44/x
  3. Step 3: Cross multiply
    39,730.24x = 54,828.04 × 21,825.44
  4. Step 4: Simplify right side
    39,730.24x = 1,196,646,097.34
  5. Step 5: Solve for x
    x = 1,196,646,097.34/39,730.24
  6. Step 6: Final answer
    x = 30,119.28

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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.