Home / 22,628.21-31,225.82-12,555.86

Finding the Fourth Proportional to 22,628.21, 31,225.82 and 12,555.86

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Solution

The fourth proportional to 22,628.21, 31,225.82 and 12,555.86 is: 17,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.21 : 31,225.82 = 12,555.86 : x
  2. Step 2: Convert to fraction form
    22,628.21/31,225.82 = 12,555.86/x
  3. Step 3: Cross multiply
    22,628.21x = 31,225.82 × 12,555.86
  4. Step 4: Simplify right side
    22,628.21x = 392,066,805.40
  5. Step 5: Solve for x
    x = 392,066,805.40/22,628.21
  6. Step 6: Final answer
    x = 17,326.47

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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.