Home / 21,193.43-31,800.47-8,717.19

Finding the Fourth Proportional to 21,193.43, 31,800.47 and 8,717.19

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Solution

The fourth proportional to 21,193.43, 31,800.47 and 8,717.19 is: 13,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.43 : 31,800.47 = 8,717.19 : x
  2. Step 2: Convert to fraction form
    21,193.43/31,800.47 = 8,717.19/x
  3. Step 3: Cross multiply
    21,193.43x = 31,800.47 × 8,717.19
  4. Step 4: Simplify right side
    21,193.43x = 277,210,695.49
  5. Step 5: Solve for x
    x = 277,210,695.49/21,193.43
  6. Step 6: Final answer
    x = 13,080.03

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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.