Home / 28,176.14-42,271.23-8,455.06

Finding the Fourth Proportional to 28,176.14, 42,271.23 and 8,455.06

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Solution

The fourth proportional to 28,176.14, 42,271.23 and 8,455.06 is: 12,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.14 : 42,271.23 = 8,455.06 : x
  2. Step 2: Convert to fraction form
    28,176.14/42,271.23 = 8,455.06/x
  3. Step 3: Cross multiply
    28,176.14x = 42,271.23 × 8,455.06
  4. Step 4: Simplify right side
    28,176.14x = 357,405,785.92
  5. Step 5: Solve for x
    x = 357,405,785.92/28,176.14
  6. Step 6: Final answer
    x = 12,684.70

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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.