Home / 19,040.76-28,561.50-5,714.28

Finding the Fourth Proportional to 19,040.76, 28,561.50 and 5,714.28

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Solution

The fourth proportional to 19,040.76, 28,561.50 and 5,714.28 is: 8,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.76 : 28,561.50 = 5,714.28 : x
  2. Step 2: Convert to fraction form
    19,040.76/28,561.50 = 5,714.28/x
  3. Step 3: Cross multiply
    19,040.76x = 28,561.50 × 5,714.28
  4. Step 4: Simplify right side
    19,040.76x = 163,208,408.22
  5. Step 5: Solve for x
    x = 163,208,408.22/19,040.76
  6. Step 6: Final answer
    x = 8,571.53

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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.