Home / 28,688.70-43,033.08-8,967.36

Finding the Fourth Proportional to 28,688.70, 43,033.08 and 8,967.36

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Solution

The fourth proportional to 28,688.70, 43,033.08 and 8,967.36 is: 13,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.70 : 43,033.08 = 8,967.36 : x
  2. Step 2: Convert to fraction form
    28,688.70/43,033.08 = 8,967.36/x
  3. Step 3: Cross multiply
    28,688.70x = 43,033.08 × 8,967.36
  4. Step 4: Simplify right side
    28,688.70x = 385,893,120.27
  5. Step 5: Solve for x
    x = 385,893,120.27/28,688.70
  6. Step 6: Final answer
    x = 13,451.05

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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.