Home / 28,903.68-43,355.52-8,127.18

Finding the Fourth Proportional to 28,903.68, 43,355.52 and 8,127.18

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Solution

The fourth proportional to 28,903.68, 43,355.52 and 8,127.18 is: 12,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.68 : 43,355.52 = 8,127.18 : x
  2. Step 2: Convert to fraction form
    28,903.68/43,355.52 = 8,127.18/x
  3. Step 3: Cross multiply
    28,903.68x = 43,355.52 × 8,127.18
  4. Step 4: Simplify right side
    28,903.68x = 352,358,115.03
  5. Step 5: Solve for x
    x = 352,358,115.03/28,903.68
  6. Step 6: Final answer
    x = 12,190.77

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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.