Home / 21,655.37-29,884.49-12,703.05

Finding the Fourth Proportional to 21,655.37, 29,884.49 and 12,703.05

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Solution

The fourth proportional to 21,655.37, 29,884.49 and 12,703.05 is: 17,530.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.37 : 29,884.49 = 12,703.05 : x
  2. Step 2: Convert to fraction form
    21,655.37/29,884.49 = 12,703.05/x
  3. Step 3: Cross multiply
    21,655.37x = 29,884.49 × 12,703.05
  4. Step 4: Simplify right side
    21,655.37x = 379,624,107.18
  5. Step 5: Solve for x
    x = 379,624,107.18/21,655.37
  6. Step 6: Final answer
    x = 17,530.26

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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.