Home / 28,709.22-39,638.05-25,674.91

Finding the Fourth Proportional to 28,709.22, 39,638.05 and 25,674.91

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Solution

The fourth proportional to 28,709.22, 39,638.05 and 25,674.91 is: 35,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.22 : 39,638.05 = 25,674.91 : x
  2. Step 2: Convert to fraction form
    28,709.22/39,638.05 = 25,674.91/x
  3. Step 3: Cross multiply
    28,709.22x = 39,638.05 × 25,674.91
  4. Step 4: Simplify right side
    28,709.22x = 1,017,703,366.33
  5. Step 5: Solve for x
    x = 1,017,703,366.33/28,709.22
  6. Step 6: Final answer
    x = 35,448.66

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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.