Home / 30,766.03-42,457.11-16,618.87

Finding the Fourth Proportional to 30,766.03, 42,457.11 and 16,618.87

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Solution

The fourth proportional to 30,766.03, 42,457.11 and 16,618.87 is: 22,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766.03 : 42,457.11 = 16,618.87 : x
  2. Step 2: Convert to fraction form
    30,766.03/42,457.11 = 16,618.87/x
  3. Step 3: Cross multiply
    30,766.03x = 42,457.11 × 16,618.87
  4. Step 4: Simplify right side
    30,766.03x = 705,589,191.67
  5. Step 5: Solve for x
    x = 705,589,191.67/30,766.03
  6. Step 6: Final answer
    x = 22,934.03

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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.