Home / 43,030.66-64,499.84-20,813.47

Finding the Fourth Proportional to 43,030.66, 64,499.84 and 20,813.47

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Solution

The fourth proportional to 43,030.66, 64,499.84 and 20,813.47 is: 31,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,030.66 : 64,499.84 = 20,813.47 : x
  2. Step 2: Convert to fraction form
    43,030.66/64,499.84 = 20,813.47/x
  3. Step 3: Cross multiply
    43,030.66x = 64,499.84 × 20,813.47
  4. Step 4: Simplify right side
    43,030.66x = 1,342,465,219.53
  5. Step 5: Solve for x
    x = 1,342,465,219.53/43,030.66
  6. Step 6: Final answer
    x = 31,197.88

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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.