Home / 30,072.12-41,499.22-16,643.40

Finding the Fourth Proportional to 30,072.12, 41,499.22 and 16,643.40

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Solution

The fourth proportional to 30,072.12, 41,499.22 and 16,643.40 is: 22,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.12 : 41,499.22 = 16,643.40 : x
  2. Step 2: Convert to fraction form
    30,072.12/41,499.22 = 16,643.40/x
  3. Step 3: Cross multiply
    30,072.12x = 41,499.22 × 16,643.40
  4. Step 4: Simplify right side
    30,072.12x = 690,688,118.15
  5. Step 5: Solve for x
    x = 690,688,118.15/30,072.12
  6. Step 6: Final answer
    x = 22,967.72

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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.