Home / 21,647.57-29,862.90-14,098.28

Finding the Fourth Proportional to 21,647.57, 29,862.90 and 14,098.28

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Solution

The fourth proportional to 21,647.57, 29,862.90 and 14,098.28 is: 19,448.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.57 : 29,862.90 = 14,098.28 : x
  2. Step 2: Convert to fraction form
    21,647.57/29,862.90 = 14,098.28/x
  3. Step 3: Cross multiply
    21,647.57x = 29,862.90 × 14,098.28
  4. Step 4: Simplify right side
    21,647.57x = 421,015,376.50
  5. Step 5: Solve for x
    x = 421,015,376.50/21,647.57
  6. Step 6: Final answer
    x = 19,448.63

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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.