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Finding the Fourth Proportional to 28,989.74, 43,488.72 and 9,263.69

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Solution

The fourth proportional to 28,989.74, 43,488.72 and 9,263.69 is: 13,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.74 : 43,488.72 = 9,263.69 : x
  2. Step 2: Convert to fraction form
    28,989.74/43,488.72 = 9,263.69/x
  3. Step 3: Cross multiply
    28,989.74x = 43,488.72 × 9,263.69
  4. Step 4: Simplify right side
    28,989.74x = 402,865,756.81
  5. Step 5: Solve for x
    x = 402,865,756.81/28,989.74
  6. Step 6: Final answer
    x = 13,896.84

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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.