Home / 28,103.30-42,148.20-16,231.40

Finding the Fourth Proportional to 28,103.30, 42,148.20 and 16,231.40

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Solution

The fourth proportional to 28,103.30, 42,148.20 and 16,231.40 is: 24,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.30 : 42,148.20 = 16,231.40 : x
  2. Step 2: Convert to fraction form
    28,103.30/42,148.20 = 16,231.40/x
  3. Step 3: Cross multiply
    28,103.30x = 42,148.20 × 16,231.40
  4. Step 4: Simplify right side
    28,103.30x = 684,124,293.48
  5. Step 5: Solve for x
    x = 684,124,293.48/28,103.30
  6. Step 6: Final answer
    x = 24,343.20

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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.