Home / 22,763.09-31,401.90-15,211.28

Finding the Fourth Proportional to 22,763.09, 31,401.90 and 15,211.28

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Solution

The fourth proportional to 22,763.09, 31,401.90 and 15,211.28 is: 20,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,763.09 : 31,401.90 = 15,211.28 : x
  2. Step 2: Convert to fraction form
    22,763.09/31,401.90 = 15,211.28/x
  3. Step 3: Cross multiply
    22,763.09x = 31,401.90 × 15,211.28
  4. Step 4: Simplify right side
    22,763.09x = 477,663,171.94
  5. Step 5: Solve for x
    x = 477,663,171.94/22,763.09
  6. Step 6: Final answer
    x = 20,984.11

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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.