Home / 31,091.28-46,564.08-21,740.64

Finding the Fourth Proportional to 31,091.28, 46,564.08 and 21,740.64

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Solution

The fourth proportional to 31,091.28, 46,564.08 and 21,740.64 is: 32,560.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,091.28 : 46,564.08 = 21,740.64 : x
  2. Step 2: Convert to fraction form
    31,091.28/46,564.08 = 21,740.64/x
  3. Step 3: Cross multiply
    31,091.28x = 46,564.08 × 21,740.64
  4. Step 4: Simplify right side
    31,091.28x = 1,012,332,900.21
  5. Step 5: Solve for x
    x = 1,012,332,900.21/31,091.28
  6. Step 6: Final answer
    x = 32,560.03

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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.