Home / 28,783.77-43,172.12-7,725.47

Finding the Fourth Proportional to 28,783.77, 43,172.12 and 7,725.47

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Solution

The fourth proportional to 28,783.77, 43,172.12 and 7,725.47 is: 11,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.77 : 43,172.12 = 7,725.47 : x
  2. Step 2: Convert to fraction form
    28,783.77/43,172.12 = 7,725.47/x
  3. Step 3: Cross multiply
    28,783.77x = 43,172.12 × 7,725.47
  4. Step 4: Simplify right side
    28,783.77x = 333,524,663.41
  5. Step 5: Solve for x
    x = 333,524,663.41/28,783.77
  6. Step 6: Final answer
    x = 11,587.25

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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.