Home / 20,698.93-28,564.65-11,267.50

Finding the Fourth Proportional to 20,698.93, 28,564.65 and 11,267.50

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Solution

The fourth proportional to 20,698.93, 28,564.65 and 11,267.50 is: 15,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.93 : 28,564.65 = 11,267.50 : x
  2. Step 2: Convert to fraction form
    20,698.93/28,564.65 = 11,267.50/x
  3. Step 3: Cross multiply
    20,698.93x = 28,564.65 × 11,267.50
  4. Step 4: Simplify right side
    20,698.93x = 321,852,193.88
  5. Step 5: Solve for x
    x = 321,852,193.88/20,698.93
  6. Step 6: Final answer
    x = 15,549.22

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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.