Home / 28,266.48-39,004.43-16,779.60

Finding the Fourth Proportional to 28,266.48, 39,004.43 and 16,779.60

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Solution

The fourth proportional to 28,266.48, 39,004.43 and 16,779.60 is: 23,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.48 : 39,004.43 = 16,779.60 : x
  2. Step 2: Convert to fraction form
    28,266.48/39,004.43 = 16,779.60/x
  3. Step 3: Cross multiply
    28,266.48x = 39,004.43 × 16,779.60
  4. Step 4: Simplify right side
    28,266.48x = 654,478,649.73
  5. Step 5: Solve for x
    x = 654,478,649.73/28,266.48
  6. Step 6: Final answer
    x = 23,153.88

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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.