Home / 20,436.95-28,203.83-11,484.43

Finding the Fourth Proportional to 20,436.95, 28,203.83 and 11,484.43

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Solution

The fourth proportional to 20,436.95, 28,203.83 and 11,484.43 is: 15,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.95 : 28,203.83 = 11,484.43 : x
  2. Step 2: Convert to fraction form
    20,436.95/28,203.83 = 11,484.43/x
  3. Step 3: Cross multiply
    20,436.95x = 28,203.83 × 11,484.43
  4. Step 4: Simplify right side
    20,436.95x = 323,904,712.93
  5. Step 5: Solve for x
    x = 323,904,712.93/20,436.95
  6. Step 6: Final answer
    x = 15,848.98

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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.