Home / 28,831.24-39,788.49-16,898.68

Finding the Fourth Proportional to 28,831.24, 39,788.49 and 16,898.68

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Solution

The fourth proportional to 28,831.24, 39,788.49 and 16,898.68 is: 23,320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.24 : 39,788.49 = 16,898.68 : x
  2. Step 2: Convert to fraction form
    28,831.24/39,788.49 = 16,898.68/x
  3. Step 3: Cross multiply
    28,831.24x = 39,788.49 × 16,898.68
  4. Step 4: Simplify right side
    28,831.24x = 672,372,960.19
  5. Step 5: Solve for x
    x = 672,372,960.19/28,831.24
  6. Step 6: Final answer
    x = 23,320.99

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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.