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Finding the Fourth Proportional to 29,649.83, 40,938.16 and 18,334.84

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Solution

The fourth proportional to 29,649.83, 40,938.16 and 18,334.84 is: 25,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.83 : 40,938.16 = 18,334.84 : x
  2. Step 2: Convert to fraction form
    29,649.83/40,938.16 = 18,334.84/x
  3. Step 3: Cross multiply
    29,649.83x = 40,938.16 × 18,334.84
  4. Step 4: Simplify right side
    29,649.83x = 750,594,613.49
  5. Step 5: Solve for x
    x = 750,594,613.49/29,649.83
  6. Step 6: Final answer
    x = 25,315.31

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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.