Home / 14,052.48-21,075.84-5,287.20

Finding the Fourth Proportional to 14,052.48, 21,075.84 and 5,287.20

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Solution

The fourth proportional to 14,052.48, 21,075.84 and 5,287.20 is: 7,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.48 : 21,075.84 = 5,287.20 : x
  2. Step 2: Convert to fraction form
    14,052.48/21,075.84 = 5,287.20/x
  3. Step 3: Cross multiply
    14,052.48x = 21,075.84 × 5,287.20
  4. Step 4: Simplify right side
    14,052.48x = 111,432,181.25
  5. Step 5: Solve for x
    x = 111,432,181.25/14,052.48
  6. Step 6: Final answer
    x = 7,929.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.