Home / 19,278.09-28,897.44-10,940.50

Finding the Fourth Proportional to 19,278.09, 28,897.44 and 10,940.50

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Solution

The fourth proportional to 19,278.09, 28,897.44 and 10,940.50 is: 16,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.09 : 28,897.44 = 10,940.50 : x
  2. Step 2: Convert to fraction form
    19,278.09/28,897.44 = 10,940.50/x
  3. Step 3: Cross multiply
    19,278.09x = 28,897.44 × 10,940.50
  4. Step 4: Simplify right side
    19,278.09x = 316,152,370.08
  5. Step 5: Solve for x
    x = 316,152,370.08/19,278.09
  6. Step 6: Final answer
    x = 16,399.57

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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.