Home / 28,505.93-39,359.01-18,440.26

Finding the Fourth Proportional to 28,505.93, 39,359.01 and 18,440.26

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Solution

The fourth proportional to 28,505.93, 39,359.01 and 18,440.26 is: 25,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,505.93 : 39,359.01 = 18,440.26 : x
  2. Step 2: Convert to fraction form
    28,505.93/39,359.01 = 18,440.26/x
  3. Step 3: Cross multiply
    28,505.93x = 39,359.01 × 18,440.26
  4. Step 4: Simplify right side
    28,505.93x = 725,790,348.50
  5. Step 5: Solve for x
    x = 725,790,348.50/28,505.93
  6. Step 6: Final answer
    x = 25,461.03

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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.