Home / 21,639.02-29,855.04-17,087.36

Finding the Fourth Proportional to 21,639.02, 29,855.04 and 17,087.36

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Solution

The fourth proportional to 21,639.02, 29,855.04 and 17,087.36 is: 23,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.02 : 29,855.04 = 17,087.36 : x
  2. Step 2: Convert to fraction form
    21,639.02/29,855.04 = 17,087.36/x
  3. Step 3: Cross multiply
    21,639.02x = 29,855.04 × 17,087.36
  4. Step 4: Simplify right side
    21,639.02x = 510,143,816.29
  5. Step 5: Solve for x
    x = 510,143,816.29/21,639.02
  6. Step 6: Final answer
    x = 23,575.18

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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.