Home / 42,546.16-63,827-12,960.64

Finding the Fourth Proportional to 42,546.16, 63,827 and 12,960.64

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Solution

The fourth proportional to 42,546.16, 63,827 and 12,960.64 is: 19,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,546.16 : 63,827 = 12,960.64 : x
  2. Step 2: Convert to fraction form
    42,546.16/63,827 = 12,960.64/x
  3. Step 3: Cross multiply
    42,546.16x = 63,827 × 12,960.64
  4. Step 4: Simplify right side
    42,546.16x = 827,238,769.28
  5. Step 5: Solve for x
    x = 827,238,769.28/42,546.16
  6. Step 6: Final answer
    x = 19,443.32

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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.