Home / 20,802.84-31,212.05-10,801.34

Finding the Fourth Proportional to 20,802.84, 31,212.05 and 10,801.34

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Solution

The fourth proportional to 20,802.84, 31,212.05 and 10,801.34 is: 16,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.84 : 31,212.05 = 10,801.34 : x
  2. Step 2: Convert to fraction form
    20,802.84/31,212.05 = 10,801.34/x
  3. Step 3: Cross multiply
    20,802.84x = 31,212.05 × 10,801.34
  4. Step 4: Simplify right side
    20,802.84x = 337,131,754.08
  5. Step 5: Solve for x
    x = 337,131,754.08/20,802.84
  6. Step 6: Final answer
    x = 16,206.05

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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.