Home / 31,418.82-43,354.34-17,989.28

Finding the Fourth Proportional to 31,418.82, 43,354.34 and 17,989.28

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Solution

The fourth proportional to 31,418.82, 43,354.34 and 17,989.28 is: 24,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.82 : 43,354.34 = 17,989.28 : x
  2. Step 2: Convert to fraction form
    31,418.82/43,354.34 = 17,989.28/x
  3. Step 3: Cross multiply
    31,418.82x = 43,354.34 × 17,989.28
  4. Step 4: Simplify right side
    31,418.82x = 779,913,054.76
  5. Step 5: Solve for x
    x = 779,913,054.76/31,418.82
  6. Step 6: Final answer
    x = 24,823.12

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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.