Home / 28,975.96-43,470.72-8,984.40

Finding the Fourth Proportional to 28,975.96, 43,470.72 and 8,984.40

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Solution

The fourth proportional to 28,975.96, 43,470.72 and 8,984.40 is: 13,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.96 : 43,470.72 = 8,984.40 : x
  2. Step 2: Convert to fraction form
    28,975.96/43,470.72 = 8,984.40/x
  3. Step 3: Cross multiply
    28,975.96x = 43,470.72 × 8,984.40
  4. Step 4: Simplify right side
    28,975.96x = 390,558,336.77
  5. Step 5: Solve for x
    x = 390,558,336.77/28,975.96
  6. Step 6: Final answer
    x = 13,478.70

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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.