Home / 28,831.49-39,786.55-16,902.77

Finding the Fourth Proportional to 28,831.49, 39,786.55 and 16,902.77

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Solution

The fourth proportional to 28,831.49, 39,786.55 and 16,902.77 is: 23,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.49 : 39,786.55 = 16,902.77 : x
  2. Step 2: Convert to fraction form
    28,831.49/39,786.55 = 16,902.77/x
  3. Step 3: Cross multiply
    28,831.49x = 39,786.55 × 16,902.77
  4. Step 4: Simplify right side
    28,831.49x = 672,502,903.74
  5. Step 5: Solve for x
    x = 672,502,903.74/28,831.49
  6. Step 6: Final answer
    x = 23,325.29

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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.