Home / 39,280.46-54,208.19-21,376.63

Finding the Fourth Proportional to 39,280.46, 54,208.19 and 21,376.63

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Solution

The fourth proportional to 39,280.46, 54,208.19 and 21,376.63 is: 29,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,280.46 : 54,208.19 = 21,376.63 : x
  2. Step 2: Convert to fraction form
    39,280.46/54,208.19 = 21,376.63/x
  3. Step 3: Cross multiply
    39,280.46x = 54,208.19 × 21,376.63
  4. Step 4: Simplify right side
    39,280.46x = 1,158,788,042.68
  5. Step 5: Solve for x
    x = 1,158,788,042.68/39,280.46
  6. Step 6: Final answer
    x = 29,500.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.