Home / 22,551.09-31,122.06-12,479.96

Finding the Fourth Proportional to 22,551.09, 31,122.06 and 12,479.96

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Solution

The fourth proportional to 22,551.09, 31,122.06 and 12,479.96 is: 17,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.09 : 31,122.06 = 12,479.96 : x
  2. Step 2: Convert to fraction form
    22,551.09/31,122.06 = 12,479.96/x
  3. Step 3: Cross multiply
    22,551.09x = 31,122.06 × 12,479.96
  4. Step 4: Simplify right side
    22,551.09x = 388,402,063.92
  5. Step 5: Solve for x
    x = 388,402,063.92/22,551.09
  6. Step 6: Final answer
    x = 17,223.21

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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.