Home / 43,161.90-64,742.86-13,582.74

Finding the Fourth Proportional to 43,161.90, 64,742.86 and 13,582.74

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Solution

The fourth proportional to 43,161.90, 64,742.86 and 13,582.74 is: 20,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,161.90 : 64,742.86 = 13,582.74 : x
  2. Step 2: Convert to fraction form
    43,161.90/64,742.86 = 13,582.74/x
  3. Step 3: Cross multiply
    43,161.90x = 64,742.86 × 13,582.74
  4. Step 4: Simplify right side
    43,161.90x = 879,385,434.24
  5. Step 5: Solve for x
    x = 879,385,434.24/43,161.90
  6. Step 6: Final answer
    x = 20,374.11

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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.