Home / 19,291.32-28,937.16-8,910.36

Finding the Fourth Proportional to 19,291.32, 28,937.16 and 8,910.36

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Solution

The fourth proportional to 19,291.32, 28,937.16 and 8,910.36 is: 13,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.32 : 28,937.16 = 8,910.36 : x
  2. Step 2: Convert to fraction form
    19,291.32/28,937.16 = 8,910.36/x
  3. Step 3: Cross multiply
    19,291.32x = 28,937.16 × 8,910.36
  4. Step 4: Simplify right side
    19,291.32x = 257,840,512.98
  5. Step 5: Solve for x
    x = 257,840,512.98/19,291.32
  6. Step 6: Final answer
    x = 13,365.62

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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.