Home / 28,168.94-38,877.90-16,239.26

Finding the Fourth Proportional to 28,168.94, 38,877.90 and 16,239.26

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Solution

The fourth proportional to 28,168.94, 38,877.90 and 16,239.26 is: 22,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.94 : 38,877.90 = 16,239.26 : x
  2. Step 2: Convert to fraction form
    28,168.94/38,877.90 = 16,239.26/x
  3. Step 3: Cross multiply
    28,168.94x = 38,877.90 × 16,239.26
  4. Step 4: Simplify right side
    28,168.94x = 631,348,326.35
  5. Step 5: Solve for x
    x = 631,348,326.35/28,168.94
  6. Step 6: Final answer
    x = 22,412.92

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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.