Home / 15,771.42-23,660.88-4,678.20

Finding the Fourth Proportional to 15,771.42, 23,660.88 and 4,678.20

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Solution

The fourth proportional to 15,771.42, 23,660.88 and 4,678.20 is: 7,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.42 : 23,660.88 = 4,678.20 : x
  2. Step 2: Convert to fraction form
    15,771.42/23,660.88 = 4,678.20/x
  3. Step 3: Cross multiply
    15,771.42x = 23,660.88 × 4,678.20
  4. Step 4: Simplify right side
    15,771.42x = 110,690,328.82
  5. Step 5: Solve for x
    x = 110,690,328.82/15,771.42
  6. Step 6: Final answer
    x = 7,018.41

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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.