Home / 20,736.86-28,607.76-14,020.02

Finding the Fourth Proportional to 20,736.86, 28,607.76 and 14,020.02

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Solution

The fourth proportional to 20,736.86, 28,607.76 and 14,020.02 is: 19,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.86 : 28,607.76 = 14,020.02 : x
  2. Step 2: Convert to fraction form
    20,736.86/28,607.76 = 14,020.02/x
  3. Step 3: Cross multiply
    20,736.86x = 28,607.76 × 14,020.02
  4. Step 4: Simplify right side
    20,736.86x = 401,081,367.36
  5. Step 5: Solve for x
    x = 401,081,367.36/20,736.86
  6. Step 6: Final answer
    x = 19,341.48

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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.