Home / 22,253.13-30,710.16-12,821.67

Finding the Fourth Proportional to 22,253.13, 30,710.16 and 12,821.67

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Solution

The fourth proportional to 22,253.13, 30,710.16 and 12,821.67 is: 17,694.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,253.13 : 30,710.16 = 12,821.67 : x
  2. Step 2: Convert to fraction form
    22,253.13/30,710.16 = 12,821.67/x
  3. Step 3: Cross multiply
    22,253.13x = 30,710.16 × 12,821.67
  4. Step 4: Simplify right side
    22,253.13x = 393,755,537.17
  5. Step 5: Solve for x
    x = 393,755,537.17/22,253.13
  6. Step 6: Final answer
    x = 17,694.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.