Home / 21,400.56-32,247-17,590.32

Finding the Fourth Proportional to 21,400.56, 32,247 and 17,590.32

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Solution

The fourth proportional to 21,400.56, 32,247 and 17,590.32 is: 26,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.56 : 32,247 = 17,590.32 : x
  2. Step 2: Convert to fraction form
    21,400.56/32,247 = 17,590.32/x
  3. Step 3: Cross multiply
    21,400.56x = 32,247 × 17,590.32
  4. Step 4: Simplify right side
    21,400.56x = 567,235,049.04
  5. Step 5: Solve for x
    x = 567,235,049.04/21,400.56
  6. Step 6: Final answer
    x = 26,505.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.