Home / 23,289.60-32,139.36-12,678.96

Finding the Fourth Proportional to 23,289.60, 32,139.36 and 12,678.96

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Solution

The fourth proportional to 23,289.60, 32,139.36 and 12,678.96 is: 17,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289.60 : 32,139.36 = 12,678.96 : x
  2. Step 2: Convert to fraction form
    23,289.60/32,139.36 = 12,678.96/x
  3. Step 3: Cross multiply
    23,289.60x = 32,139.36 × 12,678.96
  4. Step 4: Simplify right side
    23,289.60x = 407,493,659.87
  5. Step 5: Solve for x
    x = 407,493,659.87/23,289.60
  6. Step 6: Final answer
    x = 17,496.81

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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.