Home / 21,073.16-31,600.95-8,584.71

Finding the Fourth Proportional to 21,073.16, 31,600.95 and 8,584.71

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Solution

The fourth proportional to 21,073.16, 31,600.95 and 8,584.71 is: 12,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.16 : 31,600.95 = 8,584.71 : x
  2. Step 2: Convert to fraction form
    21,073.16/31,600.95 = 8,584.71/x
  3. Step 3: Cross multiply
    21,073.16x = 31,600.95 × 8,584.71
  4. Step 4: Simplify right side
    21,073.16x = 271,284,991.47
  5. Step 5: Solve for x
    x = 271,284,991.47/21,073.16
  6. Step 6: Final answer
    x = 12,873.49

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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.