Home / 28,725.75-39,637.17-16,148.07

Finding the Fourth Proportional to 28,725.75, 39,637.17 and 16,148.07

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Solution

The fourth proportional to 28,725.75, 39,637.17 and 16,148.07 is: 22,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.75 : 39,637.17 = 16,148.07 : x
  2. Step 2: Convert to fraction form
    28,725.75/39,637.17 = 16,148.07/x
  3. Step 3: Cross multiply
    28,725.75x = 39,637.17 × 16,148.07
  4. Step 4: Simplify right side
    28,725.75x = 640,063,795.76
  5. Step 5: Solve for x
    x = 640,063,795.76/28,725.75
  6. Step 6: Final answer
    x = 22,281.88

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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.