Home / 28,538.01-39,383.55-15,962.76

Finding the Fourth Proportional to 28,538.01, 39,383.55 and 15,962.76

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Solution

The fourth proportional to 28,538.01, 39,383.55 and 15,962.76 is: 22,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.01 : 39,383.55 = 15,962.76 : x
  2. Step 2: Convert to fraction form
    28,538.01/39,383.55 = 15,962.76/x
  3. Step 3: Cross multiply
    28,538.01x = 39,383.55 × 15,962.76
  4. Step 4: Simplify right side
    28,538.01x = 628,670,156.60
  5. Step 5: Solve for x
    x = 628,670,156.60/28,538.01
  6. Step 6: Final answer
    x = 22,029.22

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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.