Home / 21,069.41-29,075.27-12,116.71

Finding the Fourth Proportional to 21,069.41, 29,075.27 and 12,116.71

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Solution

The fourth proportional to 21,069.41, 29,075.27 and 12,116.71 is: 16,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.41 : 29,075.27 = 12,116.71 : x
  2. Step 2: Convert to fraction form
    21,069.41/29,075.27 = 12,116.71/x
  3. Step 3: Cross multiply
    21,069.41x = 29,075.27 × 12,116.71
  4. Step 4: Simplify right side
    21,069.41x = 352,296,554.18
  5. Step 5: Solve for x
    x = 352,296,554.18/21,069.41
  6. Step 6: Final answer
    x = 16,720.76

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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.