Home / 21,057.95-29,053.41-12,102.19

Finding the Fourth Proportional to 21,057.95, 29,053.41 and 12,102.19

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Solution

The fourth proportional to 21,057.95, 29,053.41 and 12,102.19 is: 16,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.95 : 29,053.41 = 12,102.19 : x
  2. Step 2: Convert to fraction form
    21,057.95/29,053.41 = 12,102.19/x
  3. Step 3: Cross multiply
    21,057.95x = 29,053.41 × 12,102.19
  4. Step 4: Simplify right side
    21,057.95x = 351,609,887.97
  5. Step 5: Solve for x
    x = 351,609,887.97/21,057.95
  6. Step 6: Final answer
    x = 16,697.25

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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.