Home / 42,924.58-64,330.36-20,697.36

Finding the Fourth Proportional to 42,924.58, 64,330.36 and 20,697.36

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Solution

The fourth proportional to 42,924.58, 64,330.36 and 20,697.36 is: 31,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,924.58 : 64,330.36 = 20,697.36 : x
  2. Step 2: Convert to fraction form
    42,924.58/64,330.36 = 20,697.36/x
  3. Step 3: Cross multiply
    42,924.58x = 64,330.36 × 20,697.36
  4. Step 4: Simplify right side
    42,924.58x = 1,331,468,619.85
  5. Step 5: Solve for x
    x = 1,331,468,619.85/42,924.58
  6. Step 6: Final answer
    x = 31,018.79

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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.