Home / 21,022.53-29,009.76-12,063.74

Finding the Fourth Proportional to 21,022.53, 29,009.76 and 12,063.74

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Solution

The fourth proportional to 21,022.53, 29,009.76 and 12,063.74 is: 16,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.53 : 29,009.76 = 12,063.74 : x
  2. Step 2: Convert to fraction form
    21,022.53/29,009.76 = 12,063.74/x
  3. Step 3: Cross multiply
    21,022.53x = 29,009.76 × 12,063.74
  4. Step 4: Simplify right side
    21,022.53x = 349,966,057.05
  5. Step 5: Solve for x
    x = 349,966,057.05/21,022.53
  6. Step 6: Final answer
    x = 16,647.19

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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.