Home / 22,678.04-31,290.59-13,723.64

Finding the Fourth Proportional to 22,678.04, 31,290.59 and 13,723.64

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Solution

The fourth proportional to 22,678.04, 31,290.59 and 13,723.64 is: 18,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.04 : 31,290.59 = 13,723.64 : x
  2. Step 2: Convert to fraction form
    22,678.04/31,290.59 = 13,723.64/x
  3. Step 3: Cross multiply
    22,678.04x = 31,290.59 × 13,723.64
  4. Step 4: Simplify right side
    22,678.04x = 429,420,963.75
  5. Step 5: Solve for x
    x = 429,420,963.75/22,678.04
  6. Step 6: Final answer
    x = 18,935.54

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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.