Home / 31,208.68-43,059.30-18,628.84

Finding the Fourth Proportional to 31,208.68, 43,059.30 and 18,628.84

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Solution

The fourth proportional to 31,208.68, 43,059.30 and 18,628.84 is: 25,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.68 : 43,059.30 = 18,628.84 : x
  2. Step 2: Convert to fraction form
    31,208.68/43,059.30 = 18,628.84/x
  3. Step 3: Cross multiply
    31,208.68x = 43,059.30 × 18,628.84
  4. Step 4: Simplify right side
    31,208.68x = 802,144,810.21
  5. Step 5: Solve for x
    x = 802,144,810.21/31,208.68
  6. Step 6: Final answer
    x = 25,702.62

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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.