Home / 28,076.34-38,744.77-16,139.57

Finding the Fourth Proportional to 28,076.34, 38,744.77 and 16,139.57

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Solution

The fourth proportional to 28,076.34, 38,744.77 and 16,139.57 is: 22,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.34 : 38,744.77 = 16,139.57 : x
  2. Step 2: Convert to fraction form
    28,076.34/38,744.77 = 16,139.57/x
  3. Step 3: Cross multiply
    28,076.34x = 38,744.77 × 16,139.57
  4. Step 4: Simplify right side
    28,076.34x = 625,323,830.69
  5. Step 5: Solve for x
    x = 625,323,830.69/28,076.34
  6. Step 6: Final answer
    x = 22,272.27

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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.