Home / 28,065.81-42,105.69-8,344.34

Finding the Fourth Proportional to 28,065.81, 42,105.69 and 8,344.34

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Solution

The fourth proportional to 28,065.81, 42,105.69 and 8,344.34 is: 12,518.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.81 : 42,105.69 = 8,344.34 : x
  2. Step 2: Convert to fraction form
    28,065.81/42,105.69 = 8,344.34/x
  3. Step 3: Cross multiply
    28,065.81x = 42,105.69 × 8,344.34
  4. Step 4: Simplify right side
    28,065.81x = 351,343,982.77
  5. Step 5: Solve for x
    x = 351,343,982.77/28,065.81
  6. Step 6: Final answer
    x = 12,518.58

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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.