Home / 43,308.69-64,965.35-13,728.84

Finding the Fourth Proportional to 43,308.69, 64,965.35 and 13,728.84

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Solution

The fourth proportional to 43,308.69, 64,965.35 and 13,728.84 is: 20,593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,308.69 : 64,965.35 = 13,728.84 : x
  2. Step 2: Convert to fraction form
    43,308.69/64,965.35 = 13,728.84/x
  3. Step 3: Cross multiply
    43,308.69x = 64,965.35 × 13,728.84
  4. Step 4: Simplify right side
    43,308.69x = 891,898,827.05
  5. Step 5: Solve for x
    x = 891,898,827.05/43,308.69
  6. Step 6: Final answer
    x = 20,593.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.