Home / 22,162.55-30,580.13-13,210.88

Finding the Fourth Proportional to 22,162.55, 30,580.13 and 13,210.88

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Solution

The fourth proportional to 22,162.55, 30,580.13 and 13,210.88 is: 18,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,162.55 : 30,580.13 = 13,210.88 : x
  2. Step 2: Convert to fraction form
    22,162.55/30,580.13 = 13,210.88/x
  3. Step 3: Cross multiply
    22,162.55x = 30,580.13 × 13,210.88
  4. Step 4: Simplify right side
    22,162.55x = 403,990,537.29
  5. Step 5: Solve for x
    x = 403,990,537.29/22,162.55
  6. Step 6: Final answer
    x = 18,228.52

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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.