Home / 28,501.75-42,753.84-7,725.25

Finding the Fourth Proportional to 28,501.75, 42,753.84 and 7,725.25

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Solution

The fourth proportional to 28,501.75, 42,753.84 and 7,725.25 is: 11,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.75 : 42,753.84 = 7,725.25 : x
  2. Step 2: Convert to fraction form
    28,501.75/42,753.84 = 7,725.25/x
  3. Step 3: Cross multiply
    28,501.75x = 42,753.84 × 7,725.25
  4. Step 4: Simplify right side
    28,501.75x = 330,284,102.46
  5. Step 5: Solve for x
    x = 330,284,102.46/28,501.75
  6. Step 6: Final answer
    x = 11,588.20

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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.