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Finding the Fourth Proportional to 35,980.30, 49,653.30 and 20,873.80

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Solution

The fourth proportional to 35,980.30, 49,653.30 and 20,873.80 is: 28,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,980.30 : 49,653.30 = 20,873.80 : x
  2. Step 2: Convert to fraction form
    35,980.30/49,653.30 = 20,873.80/x
  3. Step 3: Cross multiply
    35,980.30x = 49,653.30 × 20,873.80
  4. Step 4: Simplify right side
    35,980.30x = 1,036,453,053.54
  5. Step 5: Solve for x
    x = 1,036,453,053.54/35,980.30
  6. Step 6: Final answer
    x = 28,806.13

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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.