Home / 22,660.56-31,271.58-12,590.64

Finding the Fourth Proportional to 22,660.56, 31,271.58 and 12,590.64

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Solution

The fourth proportional to 22,660.56, 31,271.58 and 12,590.64 is: 17,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.56 : 31,271.58 = 12,590.64 : x
  2. Step 2: Convert to fraction form
    22,660.56/31,271.58 = 12,590.64/x
  3. Step 3: Cross multiply
    22,660.56x = 31,271.58 × 12,590.64
  4. Step 4: Simplify right side
    22,660.56x = 393,729,206.01
  5. Step 5: Solve for x
    x = 393,729,206.01/22,660.56
  6. Step 6: Final answer
    x = 17,375.09

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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.