Home / 19,530.20-26,955.87-12,732.72

Finding the Fourth Proportional to 19,530.20, 26,955.87 and 12,732.72

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Solution

The fourth proportional to 19,530.20, 26,955.87 and 12,732.72 is: 17,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.20 : 26,955.87 = 12,732.72 : x
  2. Step 2: Convert to fraction form
    19,530.20/26,955.87 = 12,732.72/x
  3. Step 3: Cross multiply
    19,530.20x = 26,955.87 × 12,732.72
  4. Step 4: Simplify right side
    19,530.20x = 343,221,545.07
  5. Step 5: Solve for x
    x = 343,221,545.07/19,530.20
  6. Step 6: Final answer
    x = 17,573.89

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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.