Home / 43,015.50-64,512.30-13,436.32

Finding the Fourth Proportional to 43,015.50, 64,512.30 and 13,436.32

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Solution

The fourth proportional to 43,015.50, 64,512.30 and 13,436.32 is: 20,151.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,015.50 : 64,512.30 = 13,436.32 : x
  2. Step 2: Convert to fraction form
    43,015.50/64,512.30 = 13,436.32/x
  3. Step 3: Cross multiply
    43,015.50x = 64,512.30 × 13,436.32
  4. Step 4: Simplify right side
    43,015.50x = 866,807,906.74
  5. Step 5: Solve for x
    x = 866,807,906.74/43,015.50
  6. Step 6: Final answer
    x = 20,151.06

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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.