Home / 22,790.17-31,452.01-12,720.58

Finding the Fourth Proportional to 22,790.17, 31,452.01 and 12,720.58

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Solution

The fourth proportional to 22,790.17, 31,452.01 and 12,720.58 is: 17,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,790.17 : 31,452.01 = 12,720.58 : x
  2. Step 2: Convert to fraction form
    22,790.17/31,452.01 = 12,720.58/x
  3. Step 3: Cross multiply
    22,790.17x = 31,452.01 × 12,720.58
  4. Step 4: Simplify right side
    22,790.17x = 400,087,770.49
  5. Step 5: Solve for x
    x = 400,087,770.49/22,790.17
  6. Step 6: Final answer
    x = 17,555.28

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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.