Home / 28,725.48-39,643.10-16,151.08

Finding the Fourth Proportional to 28,725.48, 39,643.10 and 16,151.08

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Solution

The fourth proportional to 28,725.48, 39,643.10 and 16,151.08 is: 22,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.48 : 39,643.10 = 16,151.08 : x
  2. Step 2: Convert to fraction form
    28,725.48/39,643.10 = 16,151.08/x
  3. Step 3: Cross multiply
    28,725.48x = 39,643.10 × 16,151.08
  4. Step 4: Simplify right side
    28,725.48x = 640,278,879.55
  5. Step 5: Solve for x
    x = 640,278,879.55/28,725.48
  6. Step 6: Final answer
    x = 22,289.58

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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.