Home / 28,491.96-39,316.02-16,555.80

Finding the Fourth Proportional to 28,491.96, 39,316.02 and 16,555.80

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Solution

The fourth proportional to 28,491.96, 39,316.02 and 16,555.80 is: 22,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.96 : 39,316.02 = 16,555.80 : x
  2. Step 2: Convert to fraction form
    28,491.96/39,316.02 = 16,555.80/x
  3. Step 3: Cross multiply
    28,491.96x = 39,316.02 × 16,555.80
  4. Step 4: Simplify right side
    28,491.96x = 650,908,163.92
  5. Step 5: Solve for x
    x = 650,908,163.92/28,491.96
  6. Step 6: Final answer
    x = 22,845.33

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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.