Home / 42,976.80-64,438.68-14,890.32

Finding the Fourth Proportional to 42,976.80, 64,438.68 and 14,890.32

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Solution

The fourth proportional to 42,976.80, 64,438.68 and 14,890.32 is: 22,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.80 : 64,438.68 = 14,890.32 : x
  2. Step 2: Convert to fraction form
    42,976.80/64,438.68 = 14,890.32/x
  3. Step 3: Cross multiply
    42,976.80x = 64,438.68 × 14,890.32
  4. Step 4: Simplify right side
    42,976.80x = 959,512,565.58
  5. Step 5: Solve for x
    x = 959,512,565.58/42,976.80
  6. Step 6: Final answer
    x = 22,326.29

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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.