Home / 22,950.92-31,668.40-13,521.36

Finding the Fourth Proportional to 22,950.92, 31,668.40 and 13,521.36

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Solution

The fourth proportional to 22,950.92, 31,668.40 and 13,521.36 is: 18,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,950.92 : 31,668.40 = 13,521.36 : x
  2. Step 2: Convert to fraction form
    22,950.92/31,668.40 = 13,521.36/x
  3. Step 3: Cross multiply
    22,950.92x = 31,668.40 × 13,521.36
  4. Step 4: Simplify right side
    22,950.92x = 428,199,837.02
  5. Step 5: Solve for x
    x = 428,199,837.02/22,950.92
  6. Step 6: Final answer
    x = 18,657.20

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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.