Home / 39,730.77-54,828.68-21,825.33

Finding the Fourth Proportional to 39,730.77, 54,828.68 and 21,825.33

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Solution

The fourth proportional to 39,730.77, 54,828.68 and 21,825.33 is: 30,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.77 : 54,828.68 = 21,825.33 : x
  2. Step 2: Convert to fraction form
    39,730.77/54,828.68 = 21,825.33/x
  3. Step 3: Cross multiply
    39,730.77x = 54,828.68 × 21,825.33
  4. Step 4: Simplify right side
    39,730.77x = 1,196,653,925.34
  5. Step 5: Solve for x
    x = 1,196,653,925.34/39,730.77
  6. Step 6: Final answer
    x = 30,119.07

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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.