Home / 28,172.30-42,251.70-16,300.40

Finding the Fourth Proportional to 28,172.30, 42,251.70 and 16,300.40

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Solution

The fourth proportional to 28,172.30, 42,251.70 and 16,300.40 is: 24,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.30 : 42,251.70 = 16,300.40 : x
  2. Step 2: Convert to fraction form
    28,172.30/42,251.70 = 16,300.40/x
  3. Step 3: Cross multiply
    28,172.30x = 42,251.70 × 16,300.40
  4. Step 4: Simplify right side
    28,172.30x = 688,719,610.68
  5. Step 5: Solve for x
    x = 688,719,610.68/28,172.30
  6. Step 6: Final answer
    x = 24,446.69

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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.