Home / 22,763.96-31,403.12-15,212.15

Finding the Fourth Proportional to 22,763.96, 31,403.12 and 15,212.15

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Solution

The fourth proportional to 22,763.96, 31,403.12 and 15,212.15 is: 20,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,763.96 : 31,403.12 = 15,212.15 : x
  2. Step 2: Convert to fraction form
    22,763.96/31,403.12 = 15,212.15/x
  3. Step 3: Cross multiply
    22,763.96x = 31,403.12 × 15,212.15
  4. Step 4: Simplify right side
    22,763.96x = 477,708,895.85
  5. Step 5: Solve for x
    x = 477,708,895.85/22,763.96
  6. Step 6: Final answer
    x = 20,985.32

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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.