Home / 39,873.51-55,021.55-21,967.92

Finding the Fourth Proportional to 39,873.51, 55,021.55 and 21,967.92

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Solution

The fourth proportional to 39,873.51, 55,021.55 and 21,967.92 is: 30,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.51 : 55,021.55 = 21,967.92 : x
  2. Step 2: Convert to fraction form
    39,873.51/55,021.55 = 21,967.92/x
  3. Step 3: Cross multiply
    39,873.51x = 55,021.55 × 21,967.92
  4. Step 4: Simplify right side
    39,873.51x = 1,208,708,898.84
  5. Step 5: Solve for x
    x = 1,208,708,898.84/39,873.51
  6. Step 6: Final answer
    x = 30,313.58

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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.