Home / 29,315.86-43,973.40-7,129.17

Finding the Fourth Proportional to 29,315.86, 43,973.40 and 7,129.17

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Solution

The fourth proportional to 29,315.86, 43,973.40 and 7,129.17 is: 10,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.86 : 43,973.40 = 7,129.17 : x
  2. Step 2: Convert to fraction form
    29,315.86/43,973.40 = 7,129.17/x
  3. Step 3: Cross multiply
    29,315.86x = 43,973.40 × 7,129.17
  4. Step 4: Simplify right side
    29,315.86x = 313,493,844.08
  5. Step 5: Solve for x
    x = 313,493,844.08/29,315.86
  6. Step 6: Final answer
    x = 10,693.66

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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.