Home / 20,545.80-28,353.58-12,054

Finding the Fourth Proportional to 20,545.80, 28,353.58 and 12,054

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Solution

The fourth proportional to 20,545.80, 28,353.58 and 12,054 is: 16,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.80 : 28,353.58 = 12,054 : x
  2. Step 2: Convert to fraction form
    20,545.80/28,353.58 = 12,054/x
  3. Step 3: Cross multiply
    20,545.80x = 28,353.58 × 12,054
  4. Step 4: Simplify right side
    20,545.80x = 341,774,053.32
  5. Step 5: Solve for x
    x = 341,774,053.32/20,545.80
  6. Step 6: Final answer
    x = 16,634.74

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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.