Home / 42,889.29-64,346.96-20,698.53

Finding the Fourth Proportional to 42,889.29, 64,346.96 and 20,698.53

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Solution

The fourth proportional to 42,889.29, 64,346.96 and 20,698.53 is: 31,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,889.29 : 64,346.96 = 20,698.53 : x
  2. Step 2: Convert to fraction form
    42,889.29/64,346.96 = 20,698.53/x
  3. Step 3: Cross multiply
    42,889.29x = 64,346.96 × 20,698.53
  4. Step 4: Simplify right side
    42,889.29x = 1,331,887,481.97
  5. Step 5: Solve for x
    x = 1,331,887,481.97/42,889.29
  6. Step 6: Final answer
    x = 31,054.08

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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.