Home / 19,625.36-29,428.28-8,378.92

Finding the Fourth Proportional to 19,625.36, 29,428.28 and 8,378.92

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Solution

The fourth proportional to 19,625.36, 29,428.28 and 8,378.92 is: 12,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.36 : 29,428.28 = 8,378.92 : x
  2. Step 2: Convert to fraction form
    19,625.36/29,428.28 = 8,378.92/x
  3. Step 3: Cross multiply
    19,625.36x = 29,428.28 × 8,378.92
  4. Step 4: Simplify right side
    19,625.36x = 246,577,203.86
  5. Step 5: Solve for x
    x = 246,577,203.86/19,625.36
  6. Step 6: Final answer
    x = 12,564.21

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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.