Home / 43,221.60-64,832.40-12,056.85

Finding the Fourth Proportional to 43,221.60, 64,832.40 and 12,056.85

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Solution

The fourth proportional to 43,221.60, 64,832.40 and 12,056.85 is: 18,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,221.60 : 64,832.40 = 12,056.85 : x
  2. Step 2: Convert to fraction form
    43,221.60/64,832.40 = 12,056.85/x
  3. Step 3: Cross multiply
    43,221.60x = 64,832.40 × 12,056.85
  4. Step 4: Simplify right side
    43,221.60x = 781,674,521.94
  5. Step 5: Solve for x
    x = 781,674,521.94/43,221.60
  6. Step 6: Final answer
    x = 18,085.28

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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.