Home / 38,647.09-53,336.36-21,651.06

Finding the Fourth Proportional to 38,647.09, 53,336.36 and 21,651.06

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Solution

The fourth proportional to 38,647.09, 53,336.36 and 21,651.06 is: 29,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647.09 : 53,336.36 = 21,651.06 : x
  2. Step 2: Convert to fraction form
    38,647.09/53,336.36 = 21,651.06/x
  3. Step 3: Cross multiply
    38,647.09x = 53,336.36 × 21,651.06
  4. Step 4: Simplify right side
    38,647.09x = 1,154,788,730.54
  5. Step 5: Solve for x
    x = 1,154,788,730.54/38,647.09
  6. Step 6: Final answer
    x = 29,880.35

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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.