Home / 31,533.20-43,515.88-17,385.72

Finding the Fourth Proportional to 31,533.20, 43,515.88 and 17,385.72

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Solution

The fourth proportional to 31,533.20, 43,515.88 and 17,385.72 is: 23,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,533.20 : 43,515.88 = 17,385.72 : x
  2. Step 2: Convert to fraction form
    31,533.20/43,515.88 = 17,385.72/x
  3. Step 3: Cross multiply
    31,533.20x = 43,515.88 × 17,385.72
  4. Step 4: Simplify right side
    31,533.20x = 756,554,905.23
  5. Step 5: Solve for x
    x = 756,554,905.23/31,533.20
  6. Step 6: Final answer
    x = 23,992.33

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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.