Home / 19,934.88-29,960.64-18,486.72

Finding the Fourth Proportional to 19,934.88, 29,960.64 and 18,486.72

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Solution

The fourth proportional to 19,934.88, 29,960.64 and 18,486.72 is: 27,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.88 : 29,960.64 = 18,486.72 : x
  2. Step 2: Convert to fraction form
    19,934.88/29,960.64 = 18,486.72/x
  3. Step 3: Cross multiply
    19,934.88x = 29,960.64 × 18,486.72
  4. Step 4: Simplify right side
    19,934.88x = 553,873,962.70
  5. Step 5: Solve for x
    x = 553,873,962.70/19,934.88
  6. Step 6: Final answer
    x = 27,784.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.