Home / 45,020.49-67,476.80-20,972.39

Finding the Fourth Proportional to 45,020.49, 67,476.80 and 20,972.39

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Solution

The fourth proportional to 45,020.49, 67,476.80 and 20,972.39 is: 31,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,020.49 : 67,476.80 = 20,972.39 : x
  2. Step 2: Convert to fraction form
    45,020.49/67,476.80 = 20,972.39/x
  3. Step 3: Cross multiply
    45,020.49x = 67,476.80 × 20,972.39
  4. Step 4: Simplify right side
    45,020.49x = 1,415,149,323.31
  5. Step 5: Solve for x
    x = 1,415,149,323.31/45,020.49
  6. Step 6: Final answer
    x = 31,433.45

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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.