Home / 28,268.36-42,403.44-14,220.71

Finding the Fourth Proportional to 28,268.36, 42,403.44 and 14,220.71

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Solution

The fourth proportional to 28,268.36, 42,403.44 and 14,220.71 is: 21,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.36 : 42,403.44 = 14,220.71 : x
  2. Step 2: Convert to fraction form
    28,268.36/42,403.44 = 14,220.71/x
  3. Step 3: Cross multiply
    28,268.36x = 42,403.44 × 14,220.71
  4. Step 4: Simplify right side
    28,268.36x = 603,007,023.24
  5. Step 5: Solve for x
    x = 603,007,023.24/28,268.36
  6. Step 6: Final answer
    x = 21,331.52

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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.