Home / 19,944.81-27,535.28-13,239.50

Finding the Fourth Proportional to 19,944.81, 27,535.28 and 13,239.50

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Solution

The fourth proportional to 19,944.81, 27,535.28 and 13,239.50 is: 18,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.81 : 27,535.28 = 13,239.50 : x
  2. Step 2: Convert to fraction form
    19,944.81/27,535.28 = 13,239.50/x
  3. Step 3: Cross multiply
    19,944.81x = 27,535.28 × 13,239.50
  4. Step 4: Simplify right side
    19,944.81x = 364,553,135.69
  5. Step 5: Solve for x
    x = 364,553,135.69/19,944.81
  6. Step 6: Final answer
    x = 18,278.10

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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.