Home / 20,698.06-31,041.60-9,008.50

Finding the Fourth Proportional to 20,698.06, 31,041.60 and 9,008.50

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Solution

The fourth proportional to 20,698.06, 31,041.60 and 9,008.50 is: 13,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.06 : 31,041.60 = 9,008.50 : x
  2. Step 2: Convert to fraction form
    20,698.06/31,041.60 = 9,008.50/x
  3. Step 3: Cross multiply
    20,698.06x = 31,041.60 × 9,008.50
  4. Step 4: Simplify right side
    20,698.06x = 279,638,253.60
  5. Step 5: Solve for x
    x = 279,638,253.60/20,698.06
  6. Step 6: Final answer
    x = 13,510.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.