Home / 20,557.08-28,365.72-12,055.99

Finding the Fourth Proportional to 20,557.08, 28,365.72 and 12,055.99

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Solution

The fourth proportional to 20,557.08, 28,365.72 and 12,055.99 is: 16,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.08 : 28,365.72 = 12,055.99 : x
  2. Step 2: Convert to fraction form
    20,557.08/28,365.72 = 12,055.99/x
  3. Step 3: Cross multiply
    20,557.08x = 28,365.72 × 12,055.99
  4. Step 4: Simplify right side
    20,557.08x = 341,976,836.66
  5. Step 5: Solve for x
    x = 341,976,836.66/20,557.08
  6. Step 6: Final answer
    x = 16,635.48

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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.