Home / 28,145.30-42,211.20-16,273.40

Finding the Fourth Proportional to 28,145.30, 42,211.20 and 16,273.40

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Solution

The fourth proportional to 28,145.30, 42,211.20 and 16,273.40 is: 24,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.30 : 42,211.20 = 16,273.40 : x
  2. Step 2: Convert to fraction form
    28,145.30/42,211.20 = 16,273.40/x
  3. Step 3: Cross multiply
    28,145.30x = 42,211.20 × 16,273.40
  4. Step 4: Simplify right side
    28,145.30x = 686,919,742.08
  5. Step 5: Solve for x
    x = 686,919,742.08/28,145.30
  6. Step 6: Final answer
    x = 24,406.20

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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.