Home / 30,704.92-42,368.98-19,370.12

Finding the Fourth Proportional to 30,704.92, 42,368.98 and 19,370.12

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Solution

The fourth proportional to 30,704.92, 42,368.98 and 19,370.12 is: 26,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,704.92 : 42,368.98 = 19,370.12 : x
  2. Step 2: Convert to fraction form
    30,704.92/42,368.98 = 19,370.12/x
  3. Step 3: Cross multiply
    30,704.92x = 42,368.98 × 19,370.12
  4. Step 4: Simplify right side
    30,704.92x = 820,692,226.88
  5. Step 5: Solve for x
    x = 820,692,226.88/30,704.92
  6. Step 6: Final answer
    x = 26,728.36

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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.