Home / 22,878.88-31,574.32-13,319.04

Finding the Fourth Proportional to 22,878.88, 31,574.32 and 13,319.04

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Solution

The fourth proportional to 22,878.88, 31,574.32 and 13,319.04 is: 18,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,878.88 : 31,574.32 = 13,319.04 : x
  2. Step 2: Convert to fraction form
    22,878.88/31,574.32 = 13,319.04/x
  3. Step 3: Cross multiply
    22,878.88x = 31,574.32 × 13,319.04
  4. Step 4: Simplify right side
    22,878.88x = 420,539,631.05
  5. Step 5: Solve for x
    x = 420,539,631.05/22,878.88
  6. Step 6: Final answer
    x = 18,381.13

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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.