Home / 15,362.51-21,238.32-15,222.38

Finding the Fourth Proportional to 15,362.51, 21,238.32 and 15,222.38

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Solution

The fourth proportional to 15,362.51, 21,238.32 and 15,222.38 is: 21,044.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.51 : 21,238.32 = 15,222.38 : x
  2. Step 2: Convert to fraction form
    15,362.51/21,238.32 = 15,222.38/x
  3. Step 3: Cross multiply
    15,362.51x = 21,238.32 × 15,222.38
  4. Step 4: Simplify right side
    15,362.51x = 323,297,671.41
  5. Step 5: Solve for x
    x = 323,297,671.41/15,362.51
  6. Step 6: Final answer
    x = 21,044.59

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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.