Home / 30,998.12-42,778.55-16,852.01

Finding the Fourth Proportional to 30,998.12, 42,778.55 and 16,852.01

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Solution

The fourth proportional to 30,998.12, 42,778.55 and 16,852.01 is: 23,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.12 : 42,778.55 = 16,852.01 : x
  2. Step 2: Convert to fraction form
    30,998.12/42,778.55 = 16,852.01/x
  3. Step 3: Cross multiply
    30,998.12x = 42,778.55 × 16,852.01
  4. Step 4: Simplify right side
    30,998.12x = 720,904,552.39
  5. Step 5: Solve for x
    x = 720,904,552.39/30,998.12
  6. Step 6: Final answer
    x = 23,256.40

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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.