Home / 42,710.22-64,020.75-14,622

Finding the Fourth Proportional to 42,710.22, 64,020.75 and 14,622

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Solution

The fourth proportional to 42,710.22, 64,020.75 and 14,622 is: 21,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,710.22 : 64,020.75 = 14,622 : x
  2. Step 2: Convert to fraction form
    42,710.22/64,020.75 = 14,622/x
  3. Step 3: Cross multiply
    42,710.22x = 64,020.75 × 14,622
  4. Step 4: Simplify right side
    42,710.22x = 936,111,406.50
  5. Step 5: Solve for x
    x = 936,111,406.50/42,710.22
  6. Step 6: Final answer
    x = 21,917.74

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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.