Home / 20,573.66-28,393.40-11,622.81

Finding the Fourth Proportional to 20,573.66, 28,393.40 and 11,622.81

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Solution

The fourth proportional to 20,573.66, 28,393.40 and 11,622.81 is: 16,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.66 : 28,393.40 = 11,622.81 : x
  2. Step 2: Convert to fraction form
    20,573.66/28,393.40 = 11,622.81/x
  3. Step 3: Cross multiply
    20,573.66x = 28,393.40 × 11,622.81
  4. Step 4: Simplify right side
    20,573.66x = 330,011,069.27
  5. Step 5: Solve for x
    x = 330,011,069.27/20,573.66
  6. Step 6: Final answer
    x = 16,040.46

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1.5x scale

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.