Home / 28,305.48-39,054.42-18,867.72

Finding the Fourth Proportional to 28,305.48, 39,054.42 and 18,867.72

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Solution

The fourth proportional to 28,305.48, 39,054.42 and 18,867.72 is: 26,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.48 : 39,054.42 = 18,867.72 : x
  2. Step 2: Convert to fraction form
    28,305.48/39,054.42 = 18,867.72/x
  3. Step 3: Cross multiply
    28,305.48x = 39,054.42 × 18,867.72
  4. Step 4: Simplify right side
    28,305.48x = 736,867,861.32
  5. Step 5: Solve for x
    x = 736,867,861.32/28,305.48
  6. Step 6: Final answer
    x = 26,032.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.