Home / 43,150.47-64,728.50-13,569.45

Finding the Fourth Proportional to 43,150.47, 64,728.50 and 13,569.45

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Solution

The fourth proportional to 43,150.47, 64,728.50 and 13,569.45 is: 20,355.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,150.47 : 64,728.50 = 13,569.45 : x
  2. Step 2: Convert to fraction form
    43,150.47/64,728.50 = 13,569.45/x
  3. Step 3: Cross multiply
    43,150.47x = 64,728.50 × 13,569.45
  4. Step 4: Simplify right side
    43,150.47x = 878,330,076.48
  5. Step 5: Solve for x
    x = 878,330,076.48/43,150.47
  6. Step 6: Final answer
    x = 20,355.05

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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.