Home / 22,774.10-31,421.30-13,210.68

Finding the Fourth Proportional to 22,774.10, 31,421.30 and 13,210.68

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Solution

The fourth proportional to 22,774.10, 31,421.30 and 13,210.68 is: 18,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,774.10 : 31,421.30 = 13,210.68 : x
  2. Step 2: Convert to fraction form
    22,774.10/31,421.30 = 13,210.68/x
  3. Step 3: Cross multiply
    22,774.10x = 31,421.30 × 13,210.68
  4. Step 4: Simplify right side
    22,774.10x = 415,096,552.88
  5. Step 5: Solve for x
    x = 415,096,552.88/22,774.10
  6. Step 6: Final answer
    x = 18,226.69

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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.