Home / 42,863.63-64,292.97-12,877.22

Finding the Fourth Proportional to 42,863.63, 64,292.97 and 12,877.22

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Solution

The fourth proportional to 42,863.63, 64,292.97 and 12,877.22 is: 19,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,863.63 : 64,292.97 = 12,877.22 : x
  2. Step 2: Convert to fraction form
    42,863.63/64,292.97 = 12,877.22/x
  3. Step 3: Cross multiply
    42,863.63x = 64,292.97 × 12,877.22
  4. Step 4: Simplify right side
    42,863.63x = 827,914,927.03
  5. Step 5: Solve for x
    x = 827,914,927.03/42,863.63
  6. Step 6: Final answer
    x = 19,315.09

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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.