Home / 27,620.02-38,085.45-18,651.95

Finding the Fourth Proportional to 27,620.02, 38,085.45 and 18,651.95

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Solution

The fourth proportional to 27,620.02, 38,085.45 and 18,651.95 is: 25,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.02 : 38,085.45 = 18,651.95 : x
  2. Step 2: Convert to fraction form
    27,620.02/38,085.45 = 18,651.95/x
  3. Step 3: Cross multiply
    27,620.02x = 38,085.45 × 18,651.95
  4. Step 4: Simplify right side
    27,620.02x = 710,367,906.60
  5. Step 5: Solve for x
    x = 710,367,906.60/27,620.02
  6. Step 6: Final answer
    x = 25,719.32

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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.