Home / 29,513.45-40,721.35-18,917.44

Finding the Fourth Proportional to 29,513.45, 40,721.35 and 18,917.44

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Solution

The fourth proportional to 29,513.45, 40,721.35 and 18,917.44 is: 26,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,513.45 : 40,721.35 = 18,917.44 : x
  2. Step 2: Convert to fraction form
    29,513.45/40,721.35 = 18,917.44/x
  3. Step 3: Cross multiply
    29,513.45x = 40,721.35 × 18,917.44
  4. Step 4: Simplify right side
    29,513.45x = 770,343,695.34
  5. Step 5: Solve for x
    x = 770,343,695.34/29,513.45
  6. Step 6: Final answer
    x = 26,101.45

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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.