Home / 21,507.14-32,231.54-15,981.32

Finding the Fourth Proportional to 21,507.14, 32,231.54 and 15,981.32

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Solution

The fourth proportional to 21,507.14, 32,231.54 and 15,981.32 is: 23,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507.14 : 32,231.54 = 15,981.32 : x
  2. Step 2: Convert to fraction form
    21,507.14/32,231.54 = 15,981.32/x
  3. Step 3: Cross multiply
    21,507.14x = 32,231.54 × 15,981.32
  4. Step 4: Simplify right side
    21,507.14x = 515,102,554.83
  5. Step 5: Solve for x
    x = 515,102,554.83/21,507.14
  6. Step 6: Final answer
    x = 23,950.30

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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.