Home / 20,895.86-28,837.80-11,943.20

Finding the Fourth Proportional to 20,895.86, 28,837.80 and 11,943.20

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Solution

The fourth proportional to 20,895.86, 28,837.80 and 11,943.20 is: 16,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.86 : 28,837.80 = 11,943.20 : x
  2. Step 2: Convert to fraction form
    20,895.86/28,837.80 = 11,943.20/x
  3. Step 3: Cross multiply
    20,895.86x = 28,837.80 × 11,943.20
  4. Step 4: Simplify right side
    20,895.86x = 344,415,612.96
  5. Step 5: Solve for x
    x = 344,415,612.96/20,895.86
  6. Step 6: Final answer
    x = 16,482.48

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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.