Home / 28,208.25-42,312.38-9,740.25

Finding the Fourth Proportional to 28,208.25, 42,312.38 and 9,740.25

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Solution

The fourth proportional to 28,208.25, 42,312.38 and 9,740.25 is: 14,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.25 : 42,312.38 = 9,740.25 : x
  2. Step 2: Convert to fraction form
    28,208.25/42,312.38 = 9,740.25/x
  3. Step 3: Cross multiply
    28,208.25x = 42,312.38 × 9,740.25
  4. Step 4: Simplify right side
    28,208.25x = 412,133,110.59
  5. Step 5: Solve for x
    x = 412,133,110.59/28,208.25
  6. Step 6: Final answer
    x = 14,610.38

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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.