Home / 18,700.35-27,995.85-18,153.60

Finding the Fourth Proportional to 18,700.35, 27,995.85 and 18,153.60

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Solution

The fourth proportional to 18,700.35, 27,995.85 and 18,153.60 is: 27,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.35 : 27,995.85 = 18,153.60 : x
  2. Step 2: Convert to fraction form
    18,700.35/27,995.85 = 18,153.60/x
  3. Step 3: Cross multiply
    18,700.35x = 27,995.85 × 18,153.60
  4. Step 4: Simplify right side
    18,700.35x = 508,225,462.56
  5. Step 5: Solve for x
    x = 508,225,462.56/18,700.35
  6. Step 6: Final answer
    x = 27,177.32

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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.