Home / 28,860.52-39,828.63-16,285

Finding the Fourth Proportional to 28,860.52, 39,828.63 and 16,285

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Solution

The fourth proportional to 28,860.52, 39,828.63 and 16,285 is: 22,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.52 : 39,828.63 = 16,285 : x
  2. Step 2: Convert to fraction form
    28,860.52/39,828.63 = 16,285/x
  3. Step 3: Cross multiply
    28,860.52x = 39,828.63 × 16,285
  4. Step 4: Simplify right side
    28,860.52x = 648,609,239.55
  5. Step 5: Solve for x
    x = 648,609,239.55/28,860.52
  6. Step 6: Final answer
    x = 22,473.93

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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.