Home / 30,508.87-42,097.23-19,170.34

Finding the Fourth Proportional to 30,508.87, 42,097.23 and 19,170.34

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Solution

The fourth proportional to 30,508.87, 42,097.23 and 19,170.34 is: 26,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.87 : 42,097.23 = 19,170.34 : x
  2. Step 2: Convert to fraction form
    30,508.87/42,097.23 = 19,170.34/x
  3. Step 3: Cross multiply
    30,508.87x = 42,097.23 × 19,170.34
  4. Step 4: Simplify right side
    30,508.87x = 807,018,059.15
  5. Step 5: Solve for x
    x = 807,018,059.15/30,508.87
  6. Step 6: Final answer
    x = 26,451.92

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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.