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Finding the Fourth Proportional to 39,955.88, 59,944.44 and 13,660.58

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Solution

The fourth proportional to 39,955.88, 59,944.44 and 13,660.58 is: 20,494.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,955.88 : 59,944.44 = 13,660.58 : x
  2. Step 2: Convert to fraction form
    39,955.88/59,944.44 = 13,660.58/x
  3. Step 3: Cross multiply
    39,955.88x = 59,944.44 × 13,660.58
  4. Step 4: Simplify right side
    39,955.88x = 818,875,818.18
  5. Step 5: Solve for x
    x = 818,875,818.18/39,955.88
  6. Step 6: Final answer
    x = 20,494.50

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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.