Home / 31,583.64-43,566.21-18,828.45

Finding the Fourth Proportional to 31,583.64, 43,566.21 and 18,828.45

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Solution

The fourth proportional to 31,583.64, 43,566.21 and 18,828.45 is: 25,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,583.64 : 43,566.21 = 18,828.45 : x
  2. Step 2: Convert to fraction form
    31,583.64/43,566.21 = 18,828.45/x
  3. Step 3: Cross multiply
    31,583.64x = 43,566.21 × 18,828.45
  4. Step 4: Simplify right side
    31,583.64x = 820,284,206.67
  5. Step 5: Solve for x
    x = 820,284,206.67/31,583.64
  6. Step 6: Final answer
    x = 25,971.81

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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.