Home / 23,068.24-31,821.60-20,078.80

Finding the Fourth Proportional to 23,068.24, 31,821.60 and 20,078.80

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Solution

The fourth proportional to 23,068.24, 31,821.60 and 20,078.80 is: 27,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,068.24 : 31,821.60 = 20,078.80 : x
  2. Step 2: Convert to fraction form
    23,068.24/31,821.60 = 20,078.80/x
  3. Step 3: Cross multiply
    23,068.24x = 31,821.60 × 20,078.80
  4. Step 4: Simplify right side
    23,068.24x = 638,939,542.08
  5. Step 5: Solve for x
    x = 638,939,542.08/23,068.24
  6. Step 6: Final answer
    x = 27,697.80

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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.