Home / 20,071.72-30,047.10-16,143.40

Finding the Fourth Proportional to 20,071.72, 30,047.10 and 16,143.40

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Solution

The fourth proportional to 20,071.72, 30,047.10 and 16,143.40 is: 24,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.72 : 30,047.10 = 16,143.40 : x
  2. Step 2: Convert to fraction form
    20,071.72/30,047.10 = 16,143.40/x
  3. Step 3: Cross multiply
    20,071.72x = 30,047.10 × 16,143.40
  4. Step 4: Simplify right side
    20,071.72x = 485,062,354.14
  5. Step 5: Solve for x
    x = 485,062,354.14/20,071.72
  6. Step 6: Final answer
    x = 24,166.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.