Home / 21,597.60-29,814.24-15,922.56

Finding the Fourth Proportional to 21,597.60, 29,814.24 and 15,922.56

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Solution

The fourth proportional to 21,597.60, 29,814.24 and 15,922.56 is: 21,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,597.60 : 29,814.24 = 15,922.56 : x
  2. Step 2: Convert to fraction form
    21,597.60/29,814.24 = 15,922.56/x
  3. Step 3: Cross multiply
    21,597.60x = 29,814.24 × 15,922.56
  4. Step 4: Simplify right side
    21,597.60x = 474,719,025.25
  5. Step 5: Solve for x
    x = 474,719,025.25/21,597.60
  6. Step 6: Final answer
    x = 21,980.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.