Home / 43,303.68-64,959.66-12,138.84

Finding the Fourth Proportional to 43,303.68, 64,959.66 and 12,138.84

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Solution

The fourth proportional to 43,303.68, 64,959.66 and 12,138.84 is: 18,209.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,303.68 : 64,959.66 = 12,138.84 : x
  2. Step 2: Convert to fraction form
    43,303.68/64,959.66 = 12,138.84/x
  3. Step 3: Cross multiply
    43,303.68x = 64,959.66 × 12,138.84
  4. Step 4: Simplify right side
    43,303.68x = 788,534,919.19
  5. Step 5: Solve for x
    x = 788,534,919.19/43,303.68
  6. Step 6: Final answer
    x = 18,209.42

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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.