Home / 43,272.15-64,914.30-13,686.90

Finding the Fourth Proportional to 43,272.15, 64,914.30 and 13,686.90

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Solution

The fourth proportional to 43,272.15, 64,914.30 and 13,686.90 is: 20,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,272.15 : 64,914.30 = 13,686.90 : x
  2. Step 2: Convert to fraction form
    43,272.15/64,914.30 = 13,686.90/x
  3. Step 3: Cross multiply
    43,272.15x = 64,914.30 × 13,686.90
  4. Step 4: Simplify right side
    43,272.15x = 888,475,532.67
  5. Step 5: Solve for x
    x = 888,475,532.67/43,272.15
  6. Step 6: Final answer
    x = 20,532.27

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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.