Home / 21,677.02-29,895.57-14,120.50

Finding the Fourth Proportional to 21,677.02, 29,895.57 and 14,120.50

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Solution

The fourth proportional to 21,677.02, 29,895.57 and 14,120.50 is: 19,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.02 : 29,895.57 = 14,120.50 : x
  2. Step 2: Convert to fraction form
    21,677.02/29,895.57 = 14,120.50/x
  3. Step 3: Cross multiply
    21,677.02x = 29,895.57 × 14,120.50
  4. Step 4: Simplify right side
    21,677.02x = 422,140,396.19
  5. Step 5: Solve for x
    x = 422,140,396.19/21,677.02
  6. Step 6: Final answer
    x = 19,474.10

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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.