Home / 28,171.30-42,250.20-16,299.40

Finding the Fourth Proportional to 28,171.30, 42,250.20 and 16,299.40

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Solution

The fourth proportional to 28,171.30, 42,250.20 and 16,299.40 is: 24,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.30 : 42,250.20 = 16,299.40 : x
  2. Step 2: Convert to fraction form
    28,171.30/42,250.20 = 16,299.40/x
  3. Step 3: Cross multiply
    28,171.30x = 42,250.20 × 16,299.40
  4. Step 4: Simplify right side
    28,171.30x = 688,652,909.88
  5. Step 5: Solve for x
    x = 688,652,909.88/28,171.30
  6. Step 6: Final answer
    x = 24,445.19

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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.