Home / 20,868.48-31,273.47-9,748.80

Finding the Fourth Proportional to 20,868.48, 31,273.47 and 9,748.80

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Solution

The fourth proportional to 20,868.48, 31,273.47 and 9,748.80 is: 14,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.48 : 31,273.47 = 9,748.80 : x
  2. Step 2: Convert to fraction form
    20,868.48/31,273.47 = 9,748.80/x
  3. Step 3: Cross multiply
    20,868.48x = 31,273.47 × 9,748.80
  4. Step 4: Simplify right side
    20,868.48x = 304,878,804.34
  5. Step 5: Solve for x
    x = 304,878,804.34/20,868.48
  6. Step 6: Final answer
    x = 14,609.54

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1.5x scale

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.