Home / 15,531.13-23,200.70-13,968.64

Finding the Fourth Proportional to 15,531.13, 23,200.70 and 13,968.64

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Solution

The fourth proportional to 15,531.13, 23,200.70 and 13,968.64 is: 20,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.13 : 23,200.70 = 13,968.64 : x
  2. Step 2: Convert to fraction form
    15,531.13/23,200.70 = 13,968.64/x
  3. Step 3: Cross multiply
    15,531.13x = 23,200.70 × 13,968.64
  4. Step 4: Simplify right side
    15,531.13x = 324,082,226.05
  5. Step 5: Solve for x
    x = 324,082,226.05/15,531.13
  6. Step 6: Final answer
    x = 20,866.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.