Home / 28,211.32-42,308.46-8,484.64

Finding the Fourth Proportional to 28,211.32, 42,308.46 and 8,484.64

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Solution

The fourth proportional to 28,211.32, 42,308.46 and 8,484.64 is: 12,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.32 : 42,308.46 = 8,484.64 : x
  2. Step 2: Convert to fraction form
    28,211.32/42,308.46 = 8,484.64/x
  3. Step 3: Cross multiply
    28,211.32x = 42,308.46 × 8,484.64
  4. Step 4: Simplify right side
    28,211.32x = 358,972,052.05
  5. Step 5: Solve for x
    x = 358,972,052.05/28,211.32
  6. Step 6: Final answer
    x = 12,724.40

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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.