Home / 20,869.23-31,274.60-9,749.55

Finding the Fourth Proportional to 20,869.23, 31,274.60 and 9,749.55

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Solution

The fourth proportional to 20,869.23, 31,274.60 and 9,749.55 is: 14,610.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.23 : 31,274.60 = 9,749.55 : x
  2. Step 2: Convert to fraction form
    20,869.23/31,274.60 = 9,749.55/x
  3. Step 3: Cross multiply
    20,869.23x = 31,274.60 × 9,749.55
  4. Step 4: Simplify right side
    20,869.23x = 304,913,227.68
  5. Step 5: Solve for x
    x = 304,913,227.68/20,869.23
  6. Step 6: Final answer
    x = 14,610.66

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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.