Home / 21,069.95-29,082.12-12,118.46

Finding the Fourth Proportional to 21,069.95, 29,082.12 and 12,118.46

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Solution

The fourth proportional to 21,069.95, 29,082.12 and 12,118.46 is: 16,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.95 : 29,082.12 = 12,118.46 : x
  2. Step 2: Convert to fraction form
    21,069.95/29,082.12 = 12,118.46/x
  3. Step 3: Cross multiply
    21,069.95x = 29,082.12 × 12,118.46
  4. Step 4: Simplify right side
    21,069.95x = 352,430,507.94
  5. Step 5: Solve for x
    x = 352,430,507.94/21,069.95
  6. Step 6: Final answer
    x = 16,726.69

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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.