Home / 30,910.51-42,656.32-16,763.36

Finding the Fourth Proportional to 30,910.51, 42,656.32 and 16,763.36

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Solution

The fourth proportional to 30,910.51, 42,656.32 and 16,763.36 is: 23,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.51 : 42,656.32 = 16,763.36 : x
  2. Step 2: Convert to fraction form
    30,910.51/42,656.32 = 16,763.36/x
  3. Step 3: Cross multiply
    30,910.51x = 42,656.32 × 16,763.36
  4. Step 4: Simplify right side
    30,910.51x = 715,063,056.11
  5. Step 5: Solve for x
    x = 715,063,056.11/30,910.51
  6. Step 6: Final answer
    x = 23,133.33

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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.