Home / 21,598.60-29,815.62-15,923.56

Finding the Fourth Proportional to 21,598.60, 29,815.62 and 15,923.56

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Solution

The fourth proportional to 21,598.60, 29,815.62 and 15,923.56 is: 21,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.60 : 29,815.62 = 15,923.56 : x
  2. Step 2: Convert to fraction form
    21,598.60/29,815.62 = 15,923.56/x
  3. Step 3: Cross multiply
    21,598.60x = 29,815.62 × 15,923.56
  4. Step 4: Simplify right side
    21,598.60x = 474,770,814.01
  5. Step 5: Solve for x
    x = 474,770,814.01/21,598.60
  6. Step 6: Final answer
    x = 21,981.56

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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.