Home / 20,418.18-30,598.74-11,038.02

Finding the Fourth Proportional to 20,418.18, 30,598.74 and 11,038.02

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Solution

The fourth proportional to 20,418.18, 30,598.74 and 11,038.02 is: 16,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.18 : 30,598.74 = 11,038.02 : x
  2. Step 2: Convert to fraction form
    20,418.18/30,598.74 = 11,038.02/x
  3. Step 3: Cross multiply
    20,418.18x = 30,598.74 × 11,038.02
  4. Step 4: Simplify right side
    20,418.18x = 337,749,504.09
  5. Step 5: Solve for x
    x = 337,749,504.09/20,418.18
  6. Step 6: Final answer
    x = 16,541.61

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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.