Home / 18,142.37-27,188.03-14,428.11

Finding the Fourth Proportional to 18,142.37, 27,188.03 and 14,428.11

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Solution

The fourth proportional to 18,142.37, 27,188.03 and 14,428.11 is: 21,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.37 : 27,188.03 = 14,428.11 : x
  2. Step 2: Convert to fraction form
    18,142.37/27,188.03 = 14,428.11/x
  3. Step 3: Cross multiply
    18,142.37x = 27,188.03 × 14,428.11
  4. Step 4: Simplify right side
    18,142.37x = 392,271,887.52
  5. Step 5: Solve for x
    x = 392,271,887.52/18,142.37
  6. Step 6: Final answer
    x = 21,621.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.