Home / 22,142.63-30,560.01-13,190.28

Finding the Fourth Proportional to 22,142.63, 30,560.01 and 13,190.28

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Solution

The fourth proportional to 22,142.63, 30,560.01 and 13,190.28 is: 18,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.63 : 30,560.01 = 13,190.28 : x
  2. Step 2: Convert to fraction form
    22,142.63/30,560.01 = 13,190.28/x
  3. Step 3: Cross multiply
    22,142.63x = 30,560.01 × 13,190.28
  4. Step 4: Simplify right side
    22,142.63x = 403,095,088.70
  5. Step 5: Solve for x
    x = 403,095,088.70/22,142.63
  6. Step 6: Final answer
    x = 18,204.49

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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.