Home / 22,922.49-31,630.85-12,851.36

Finding the Fourth Proportional to 22,922.49, 31,630.85 and 12,851.36

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Solution

The fourth proportional to 22,922.49, 31,630.85 and 12,851.36 is: 17,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,922.49 : 31,630.85 = 12,851.36 : x
  2. Step 2: Convert to fraction form
    22,922.49/31,630.85 = 12,851.36/x
  3. Step 3: Cross multiply
    22,922.49x = 31,630.85 × 12,851.36
  4. Step 4: Simplify right side
    22,922.49x = 406,499,457.14
  5. Step 5: Solve for x
    x = 406,499,457.14/22,922.49
  6. Step 6: Final answer
    x = 17,733.65

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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.