Home / 28,890.84-43,337.76-9,170.94

Finding the Fourth Proportional to 28,890.84, 43,337.76 and 9,170.94

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Solution

The fourth proportional to 28,890.84, 43,337.76 and 9,170.94 is: 13,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.84 : 43,337.76 = 9,170.94 : x
  2. Step 2: Convert to fraction form
    28,890.84/43,337.76 = 9,170.94/x
  3. Step 3: Cross multiply
    28,890.84x = 43,337.76 × 9,170.94
  4. Step 4: Simplify right side
    28,890.84x = 397,447,996.69
  5. Step 5: Solve for x
    x = 397,447,996.69/28,890.84
  6. Step 6: Final answer
    x = 13,756.89

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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.