Home / 39,961.63-59,943.73-20,981.46

Finding the Fourth Proportional to 39,961.63, 59,943.73 and 20,981.46

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Solution

The fourth proportional to 39,961.63, 59,943.73 and 20,981.46 is: 31,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,961.63 : 59,943.73 = 20,981.46 : x
  2. Step 2: Convert to fraction form
    39,961.63/59,943.73 = 20,981.46/x
  3. Step 3: Cross multiply
    39,961.63x = 59,943.73 × 20,981.46
  4. Step 4: Simplify right side
    39,961.63x = 1,257,706,679.15
  5. Step 5: Solve for x
    x = 1,257,706,679.15/39,961.63
  6. Step 6: Final answer
    x = 31,472.86

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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.