Home / 20,336.54-28,064.43-11,384.06

Finding the Fourth Proportional to 20,336.54, 28,064.43 and 11,384.06

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Solution

The fourth proportional to 20,336.54, 28,064.43 and 11,384.06 is: 15,710.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.54 : 28,064.43 = 11,384.06 : x
  2. Step 2: Convert to fraction form
    20,336.54/28,064.43 = 11,384.06/x
  3. Step 3: Cross multiply
    20,336.54x = 28,064.43 × 11,384.06
  4. Step 4: Simplify right side
    20,336.54x = 319,487,014.66
  5. Step 5: Solve for x
    x = 319,487,014.66/20,336.54
  6. Step 6: Final answer
    x = 15,710.00

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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.