Home / 28,884.10-43,369.35-20,157.70

Finding the Fourth Proportional to 28,884.10, 43,369.35 and 20,157.70

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Solution

The fourth proportional to 28,884.10, 43,369.35 and 20,157.70 is: 30,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.10 : 43,369.35 = 20,157.70 : x
  2. Step 2: Convert to fraction form
    28,884.10/43,369.35 = 20,157.70/x
  3. Step 3: Cross multiply
    28,884.10x = 43,369.35 × 20,157.70
  4. Step 4: Simplify right side
    28,884.10x = 874,226,346.50
  5. Step 5: Solve for x
    x = 874,226,346.50/28,884.10
  6. Step 6: Final answer
    x = 30,266.70

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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.