Home / 31,511.43-43,492.95-21,464.19

Finding the Fourth Proportional to 31,511.43, 43,492.95 and 21,464.19

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Solution

The fourth proportional to 31,511.43, 43,492.95 and 21,464.19 is: 29,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.43 : 43,492.95 = 21,464.19 : x
  2. Step 2: Convert to fraction form
    31,511.43/43,492.95 = 21,464.19/x
  3. Step 3: Cross multiply
    31,511.43x = 43,492.95 × 21,464.19
  4. Step 4: Simplify right side
    31,511.43x = 933,540,942.46
  5. Step 5: Solve for x
    x = 933,540,942.46/31,511.43
  6. Step 6: Final answer
    x = 29,625.47

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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.