Home / 22,403.39-30,915.09-13,328.25

Finding the Fourth Proportional to 22,403.39, 30,915.09 and 13,328.25

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Solution

The fourth proportional to 22,403.39, 30,915.09 and 13,328.25 is: 18,392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.39 : 30,915.09 = 13,328.25 : x
  2. Step 2: Convert to fraction form
    22,403.39/30,915.09 = 13,328.25/x
  3. Step 3: Cross multiply
    22,403.39x = 30,915.09 × 13,328.25
  4. Step 4: Simplify right side
    22,403.39x = 412,044,048.29
  5. Step 5: Solve for x
    x = 412,044,048.29/22,403.39
  6. Step 6: Final answer
    x = 18,392.04

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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.