Home / 21,200.58-31,800.06-8,717.13

Finding the Fourth Proportional to 21,200.58, 31,800.06 and 8,717.13

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Solution

The fourth proportional to 21,200.58, 31,800.06 and 8,717.13 is: 13,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.58 : 31,800.06 = 8,717.13 : x
  2. Step 2: Convert to fraction form
    21,200.58/31,800.06 = 8,717.13/x
  3. Step 3: Cross multiply
    21,200.58x = 31,800.06 × 8,717.13
  4. Step 4: Simplify right side
    21,200.58x = 277,205,257.03
  5. Step 5: Solve for x
    x = 277,205,257.03/21,200.58
  6. Step 6: Final answer
    x = 13,075.36

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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.