Home / 30,819.39-42,530.58-16,671.93

Finding the Fourth Proportional to 30,819.39, 42,530.58 and 16,671.93

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Solution

The fourth proportional to 30,819.39, 42,530.58 and 16,671.93 is: 23,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.39 : 42,530.58 = 16,671.93 : x
  2. Step 2: Convert to fraction form
    30,819.39/42,530.58 = 16,671.93/x
  3. Step 3: Cross multiply
    30,819.39x = 42,530.58 × 16,671.93
  4. Step 4: Simplify right side
    30,819.39x = 709,066,852.62
  5. Step 5: Solve for x
    x = 709,066,852.62/30,819.39
  6. Step 6: Final answer
    x = 23,007.17

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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.