Home / 15,833.48-21,950.10-14,990.81

Finding the Fourth Proportional to 15,833.48, 21,950.10 and 14,990.81

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Solution

The fourth proportional to 15,833.48, 21,950.10 and 14,990.81 is: 20,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,833.48 : 21,950.10 = 14,990.81 : x
  2. Step 2: Convert to fraction form
    15,833.48/21,950.10 = 14,990.81/x
  3. Step 3: Cross multiply
    15,833.48x = 21,950.10 × 14,990.81
  4. Step 4: Simplify right side
    15,833.48x = 329,049,668.83
  5. Step 5: Solve for x
    x = 329,049,668.83/15,833.48
  6. Step 6: Final answer
    x = 20,781.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.