Home / 23,181.03-31,989.80-12,570.62

Finding the Fourth Proportional to 23,181.03, 31,989.80 and 12,570.62

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Solution

The fourth proportional to 23,181.03, 31,989.80 and 12,570.62 is: 17,347.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.03 : 31,989.80 = 12,570.62 : x
  2. Step 2: Convert to fraction form
    23,181.03/31,989.80 = 12,570.62/x
  3. Step 3: Cross multiply
    23,181.03x = 31,989.80 × 12,570.62
  4. Step 4: Simplify right side
    23,181.03x = 402,131,491.15
  5. Step 5: Solve for x
    x = 402,131,491.15/23,181.03
  6. Step 6: Final answer
    x = 17,347.44

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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.