Home / 23,478.81-35,220.39-8,489.69

Finding the Fourth Proportional to 23,478.81, 35,220.39 and 8,489.69

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Solution

The fourth proportional to 23,478.81, 35,220.39 and 8,489.69 is: 12,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,478.81 : 35,220.39 = 8,489.69 : x
  2. Step 2: Convert to fraction form
    23,478.81/35,220.39 = 8,489.69/x
  3. Step 3: Cross multiply
    23,478.81x = 35,220.39 × 8,489.69
  4. Step 4: Simplify right side
    23,478.81x = 299,010,089.49
  5. Step 5: Solve for x
    x = 299,010,089.49/23,478.81
  6. Step 6: Final answer
    x = 12,735.32

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Double scale
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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.