Home / 42,425.37-63,638.06-12,843.16

Finding the Fourth Proportional to 42,425.37, 63,638.06 and 12,843.16

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Solution

The fourth proportional to 42,425.37, 63,638.06 and 12,843.16 is: 19,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,425.37 : 63,638.06 = 12,843.16 : x
  2. Step 2: Convert to fraction form
    42,425.37/63,638.06 = 12,843.16/x
  3. Step 3: Cross multiply
    42,425.37x = 63,638.06 × 12,843.16
  4. Step 4: Simplify right side
    42,425.37x = 817,313,563.36
  5. Step 5: Solve for x
    x = 817,313,563.36/42,425.37
  6. Step 6: Final answer
    x = 19,264.74

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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.