Home / 43,203.24-64,710.90-20,969.82

Finding the Fourth Proportional to 43,203.24, 64,710.90 and 20,969.82

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Solution

The fourth proportional to 43,203.24, 64,710.90 and 20,969.82 is: 31,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,203.24 : 64,710.90 = 20,969.82 : x
  2. Step 2: Convert to fraction form
    43,203.24/64,710.90 = 20,969.82/x
  3. Step 3: Cross multiply
    43,203.24x = 64,710.90 × 20,969.82
  4. Step 4: Simplify right side
    43,203.24x = 1,356,975,925.04
  5. Step 5: Solve for x
    x = 1,356,975,925.04/43,203.24
  6. Step 6: Final answer
    x = 31,409.12

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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.