Home / 28,631.28-42,891.24-16,113.12

Finding the Fourth Proportional to 28,631.28, 42,891.24 and 16,113.12

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Solution

The fourth proportional to 28,631.28, 42,891.24 and 16,113.12 is: 24,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.28 : 42,891.24 = 16,113.12 : x
  2. Step 2: Convert to fraction form
    28,631.28/42,891.24 = 16,113.12/x
  3. Step 3: Cross multiply
    28,631.28x = 42,891.24 × 16,113.12
  4. Step 4: Simplify right side
    28,631.28x = 691,111,697.07
  5. Step 5: Solve for x
    x = 691,111,697.07/28,631.28
  6. Step 6: Final answer
    x = 24,138.34

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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.