Home / 19,968.90-27,537.41-15,491.02

Finding the Fourth Proportional to 19,968.90, 27,537.41 and 15,491.02

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Solution

The fourth proportional to 19,968.90, 27,537.41 and 15,491.02 is: 21,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.90 : 27,537.41 = 15,491.02 : x
  2. Step 2: Convert to fraction form
    19,968.90/27,537.41 = 15,491.02/x
  3. Step 3: Cross multiply
    19,968.90x = 27,537.41 × 15,491.02
  4. Step 4: Simplify right side
    19,968.90x = 426,582,559.10
  5. Step 5: Solve for x
    x = 426,582,559.10/19,968.90
  6. Step 6: Final answer
    x = 21,362.34

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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.