Home / 28,076.16-38,740.69-16,137.27

Finding the Fourth Proportional to 28,076.16, 38,740.69 and 16,137.27

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Solution

The fourth proportional to 28,076.16, 38,740.69 and 16,137.27 is: 22,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.16 : 38,740.69 = 16,137.27 : x
  2. Step 2: Convert to fraction form
    28,076.16/38,740.69 = 16,137.27/x
  3. Step 3: Cross multiply
    28,076.16x = 38,740.69 × 16,137.27
  4. Step 4: Simplify right side
    28,076.16x = 625,168,780.81
  5. Step 5: Solve for x
    x = 625,168,780.81/28,076.16
  6. Step 6: Final answer
    x = 22,266.89

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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.