Home / 42,968.66-64,444.64-21,615.68

Finding the Fourth Proportional to 42,968.66, 64,444.64 and 21,615.68

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Solution

The fourth proportional to 42,968.66, 64,444.64 and 21,615.68 is: 32,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968.66 : 64,444.64 = 21,615.68 : x
  2. Step 2: Convert to fraction form
    42,968.66/64,444.64 = 21,615.68/x
  3. Step 3: Cross multiply
    42,968.66x = 64,444.64 × 21,615.68
  4. Step 4: Simplify right side
    42,968.66x = 1,393,014,285.65
  5. Step 5: Solve for x
    x = 1,393,014,285.65/42,968.66
  6. Step 6: Final answer
    x = 32,419.31

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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.