Home / 28,164.33-38,864.12-16,831.57

Finding the Fourth Proportional to 28,164.33, 38,864.12 and 16,831.57

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Solution

The fourth proportional to 28,164.33, 38,864.12 and 16,831.57 is: 23,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.33 : 38,864.12 = 16,831.57 : x
  2. Step 2: Convert to fraction form
    28,164.33/38,864.12 = 16,831.57/x
  3. Step 3: Cross multiply
    28,164.33x = 38,864.12 × 16,831.57
  4. Step 4: Simplify right side
    28,164.33x = 654,144,072.11
  5. Step 5: Solve for x
    x = 654,144,072.11/28,164.33
  6. Step 6: Final answer
    x = 23,225.98

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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.