Home / 22,619.22-31,214.31-12,547.68

Finding the Fourth Proportional to 22,619.22, 31,214.31 and 12,547.68

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Solution

The fourth proportional to 22,619.22, 31,214.31 and 12,547.68 is: 17,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.22 : 31,214.31 = 12,547.68 : x
  2. Step 2: Convert to fraction form
    22,619.22/31,214.31 = 12,547.68/x
  3. Step 3: Cross multiply
    22,619.22x = 31,214.31 × 12,547.68
  4. Step 4: Simplify right side
    22,619.22x = 391,667,173.30
  5. Step 5: Solve for x
    x = 391,667,173.30/22,619.22
  6. Step 6: Final answer
    x = 17,315.68

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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.