Home / 28,305.51-42,457.80-7,245.37

Finding the Fourth Proportional to 28,305.51, 42,457.80 and 7,245.37

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Solution

The fourth proportional to 28,305.51, 42,457.80 and 7,245.37 is: 10,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.51 : 42,457.80 = 7,245.37 : x
  2. Step 2: Convert to fraction form
    28,305.51/42,457.80 = 7,245.37/x
  3. Step 3: Cross multiply
    28,305.51x = 42,457.80 × 7,245.37
  4. Step 4: Simplify right side
    28,305.51x = 307,622,470.39
  5. Step 5: Solve for x
    x = 307,622,470.39/28,305.51
  6. Step 6: Final answer
    x = 10,867.94

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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.