Home / 20,828.69-31,206.63-17,341.11

Finding the Fourth Proportional to 20,828.69, 31,206.63 and 17,341.11

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Solution

The fourth proportional to 20,828.69, 31,206.63 and 17,341.11 is: 25,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828.69 : 31,206.63 = 17,341.11 : x
  2. Step 2: Convert to fraction form
    20,828.69/31,206.63 = 17,341.11/x
  3. Step 3: Cross multiply
    20,828.69x = 31,206.63 × 17,341.11
  4. Step 4: Simplify right side
    20,828.69x = 541,157,603.56
  5. Step 5: Solve for x
    x = 541,157,603.56/20,828.69
  6. Step 6: Final answer
    x = 25,981.36

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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.