Home / 29,550.60-40,771.08-18,921.78

Finding the Fourth Proportional to 29,550.60, 40,771.08 and 18,921.78

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Solution

The fourth proportional to 29,550.60, 40,771.08 and 18,921.78 is: 26,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,550.60 : 40,771.08 = 18,921.78 : x
  2. Step 2: Convert to fraction form
    29,550.60/40,771.08 = 18,921.78/x
  3. Step 3: Cross multiply
    29,550.60x = 40,771.08 × 18,921.78
  4. Step 4: Simplify right side
    29,550.60x = 771,461,406.12
  5. Step 5: Solve for x
    x = 771,461,406.12/29,550.60
  6. Step 6: Final answer
    x = 26,106.45

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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.