Home / 20,364.01-28,072.89-14,295.78

Finding the Fourth Proportional to 20,364.01, 28,072.89 and 14,295.78

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Solution

The fourth proportional to 20,364.01, 28,072.89 and 14,295.78 is: 19,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364.01 : 28,072.89 = 14,295.78 : x
  2. Step 2: Convert to fraction form
    20,364.01/28,072.89 = 14,295.78/x
  3. Step 3: Cross multiply
    20,364.01x = 28,072.89 × 14,295.78
  4. Step 4: Simplify right side
    20,364.01x = 401,323,754.51
  5. Step 5: Solve for x
    x = 401,323,754.51/20,364.01
  6. Step 6: Final answer
    x = 19,707.50

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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.