Home / 43,085.44-64,628.16-13,505.56

Finding the Fourth Proportional to 43,085.44, 64,628.16 and 13,505.56

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Solution

The fourth proportional to 43,085.44, 64,628.16 and 13,505.56 is: 20,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,085.44 : 64,628.16 = 13,505.56 : x
  2. Step 2: Convert to fraction form
    43,085.44/64,628.16 = 13,505.56/x
  3. Step 3: Cross multiply
    43,085.44x = 64,628.16 × 13,505.56
  4. Step 4: Simplify right side
    43,085.44x = 872,839,492.57
  5. Step 5: Solve for x
    x = 872,839,492.57/43,085.44
  6. Step 6: Final answer
    x = 20,258.34

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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.