Home / 28,101.96-38,781.81-16,165.26

Finding the Fourth Proportional to 28,101.96, 38,781.81 and 16,165.26

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Solution

The fourth proportional to 28,101.96, 38,781.81 and 16,165.26 is: 22,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.96 : 38,781.81 = 16,165.26 : x
  2. Step 2: Convert to fraction form
    28,101.96/38,781.81 = 16,165.26/x
  3. Step 3: Cross multiply
    28,101.96x = 38,781.81 × 16,165.26
  4. Step 4: Simplify right side
    28,101.96x = 626,918,041.92
  5. Step 5: Solve for x
    x = 626,918,041.92/28,101.96
  6. Step 6: Final answer
    x = 22,308.69

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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.