Home / 28,171.77-38,877.87-15,596.52

Finding the Fourth Proportional to 28,171.77, 38,877.87 and 15,596.52

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Solution

The fourth proportional to 28,171.77, 38,877.87 and 15,596.52 is: 21,523.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.77 : 38,877.87 = 15,596.52 : x
  2. Step 2: Convert to fraction form
    28,171.77/38,877.87 = 15,596.52/x
  3. Step 3: Cross multiply
    28,171.77x = 38,877.87 × 15,596.52
  4. Step 4: Simplify right side
    28,171.77x = 606,359,477.01
  5. Step 5: Solve for x
    x = 606,359,477.01/28,171.77
  6. Step 6: Final answer
    x = 21,523.66

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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.