Home / 19,521.28-26,932.10-12,810.62

Finding the Fourth Proportional to 19,521.28, 26,932.10 and 12,810.62

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Solution

The fourth proportional to 19,521.28, 26,932.10 and 12,810.62 is: 17,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.28 : 26,932.10 = 12,810.62 : x
  2. Step 2: Convert to fraction form
    19,521.28/26,932.10 = 12,810.62/x
  3. Step 3: Cross multiply
    19,521.28x = 26,932.10 × 12,810.62
  4. Step 4: Simplify right side
    19,521.28x = 345,016,898.90
  5. Step 5: Solve for x
    x = 345,016,898.90/19,521.28
  6. Step 6: Final answer
    x = 17,673.89

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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.