Home / 42,976.79-64,438.68-14,890.31

Finding the Fourth Proportional to 42,976.79, 64,438.68 and 14,890.31

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Solution

The fourth proportional to 42,976.79, 64,438.68 and 14,890.31 is: 22,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.79 : 64,438.68 = 14,890.31 : x
  2. Step 2: Convert to fraction form
    42,976.79/64,438.68 = 14,890.31/x
  3. Step 3: Cross multiply
    42,976.79x = 64,438.68 × 14,890.31
  4. Step 4: Simplify right side
    42,976.79x = 959,511,921.19
  5. Step 5: Solve for x
    x = 959,511,921.19/42,976.79
  6. Step 6: Final answer
    x = 22,326.28

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1.5x scale

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.