Home / 28,813.32-43,190.01-12,159.45

Finding the Fourth Proportional to 28,813.32, 43,190.01 and 12,159.45

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Solution

The fourth proportional to 28,813.32, 43,190.01 and 12,159.45 is: 18,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.32 : 43,190.01 = 12,159.45 : x
  2. Step 2: Convert to fraction form
    28,813.32/43,190.01 = 12,159.45/x
  3. Step 3: Cross multiply
    28,813.32x = 43,190.01 × 12,159.45
  4. Step 4: Simplify right side
    28,813.32x = 525,166,767.09
  5. Step 5: Solve for x
    x = 525,166,767.09/28,813.32
  6. Step 6: Final answer
    x = 18,226.53

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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.