Home / 22,880.12-31,575.96-12,809.19

Finding the Fourth Proportional to 22,880.12, 31,575.96 and 12,809.19

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Solution

The fourth proportional to 22,880.12, 31,575.96 and 12,809.19 is: 17,677.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,880.12 : 31,575.96 = 12,809.19 : x
  2. Step 2: Convert to fraction form
    22,880.12/31,575.96 = 12,809.19/x
  3. Step 3: Cross multiply
    22,880.12x = 31,575.96 × 12,809.19
  4. Step 4: Simplify right side
    22,880.12x = 404,462,471.07
  5. Step 5: Solve for x
    x = 404,462,471.07/22,880.12
  6. Step 6: Final answer
    x = 17,677.47

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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.