Home / 28,083.55-38,755.37-15,336.76

Finding the Fourth Proportional to 28,083.55, 38,755.37 and 15,336.76

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Solution

The fourth proportional to 28,083.55, 38,755.37 and 15,336.76 is: 21,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.55 : 38,755.37 = 15,336.76 : x
  2. Step 2: Convert to fraction form
    28,083.55/38,755.37 = 15,336.76/x
  3. Step 3: Cross multiply
    28,083.55x = 38,755.37 × 15,336.76
  4. Step 4: Simplify right side
    28,083.55x = 594,381,808.40
  5. Step 5: Solve for x
    x = 594,381,808.40/28,083.55
  6. Step 6: Final answer
    x = 21,164.77

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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.