Home / 30,797.90-42,501.11-16,650.75

Finding the Fourth Proportional to 30,797.90, 42,501.11 and 16,650.75

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Solution

The fourth proportional to 30,797.90, 42,501.11 and 16,650.75 is: 22,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.90 : 42,501.11 = 16,650.75 : x
  2. Step 2: Convert to fraction form
    30,797.90/42,501.11 = 16,650.75/x
  3. Step 3: Cross multiply
    30,797.90x = 42,501.11 × 16,650.75
  4. Step 4: Simplify right side
    30,797.90x = 707,675,061.57
  5. Step 5: Solve for x
    x = 707,675,061.57/30,797.90
  6. Step 6: Final answer
    x = 22,978.03

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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.