Home / 39,873.60-55,025.73-21,967.74

Finding the Fourth Proportional to 39,873.60, 55,025.73 and 21,967.74

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Solution

The fourth proportional to 39,873.60, 55,025.73 and 21,967.74 is: 30,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.60 : 55,025.73 = 21,967.74 : x
  2. Step 2: Convert to fraction form
    39,873.60/55,025.73 = 21,967.74/x
  3. Step 3: Cross multiply
    39,873.60x = 55,025.73 × 21,967.74
  4. Step 4: Simplify right side
    39,873.60x = 1,208,790,929.95
  5. Step 5: Solve for x
    x = 1,208,790,929.95/39,873.60
  6. Step 6: Final answer
    x = 30,315.57

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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.