Home / 20,903.98-31,347.80-7,573.81

Finding the Fourth Proportional to 20,903.98, 31,347.80 and 7,573.81

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Solution

The fourth proportional to 20,903.98, 31,347.80 and 7,573.81 is: 11,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.98 : 31,347.80 = 7,573.81 : x
  2. Step 2: Convert to fraction form
    20,903.98/31,347.80 = 7,573.81/x
  3. Step 3: Cross multiply
    20,903.98x = 31,347.80 × 7,573.81
  4. Step 4: Simplify right side
    20,903.98x = 237,422,320.30
  5. Step 5: Solve for x
    x = 237,422,320.30/20,903.98
  6. Step 6: Final answer
    x = 11,357.76

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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.