Home / 21,354.21-32,005.32-15,115.99

Finding the Fourth Proportional to 21,354.21, 32,005.32 and 15,115.99

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Solution

The fourth proportional to 21,354.21, 32,005.32 and 15,115.99 is: 22,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.21 : 32,005.32 = 15,115.99 : x
  2. Step 2: Convert to fraction form
    21,354.21/32,005.32 = 15,115.99/x
  3. Step 3: Cross multiply
    21,354.21x = 32,005.32 × 15,115.99
  4. Step 4: Simplify right side
    21,354.21x = 483,792,097.07
  5. Step 5: Solve for x
    x = 483,792,097.07/21,354.21
  6. Step 6: Final answer
    x = 22,655.58

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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.