Home / 30,453.84-42,037.92-19,846.08

Finding the Fourth Proportional to 30,453.84, 42,037.92 and 19,846.08

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Solution

The fourth proportional to 30,453.84, 42,037.92 and 19,846.08 is: 27,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.84 : 42,037.92 = 19,846.08 : x
  2. Step 2: Convert to fraction form
    30,453.84/42,037.92 = 19,846.08/x
  3. Step 3: Cross multiply
    30,453.84x = 42,037.92 × 19,846.08
  4. Step 4: Simplify right side
    30,453.84x = 834,287,923.35
  5. Step 5: Solve for x
    x = 834,287,923.35/30,453.84
  6. Step 6: Final answer
    x = 27,395.16

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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.