Home / 28,135.33-38,831.95-18,076.35

Finding the Fourth Proportional to 28,135.33, 38,831.95 and 18,076.35

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Solution

The fourth proportional to 28,135.33, 38,831.95 and 18,076.35 is: 24,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.33 : 38,831.95 = 18,076.35 : x
  2. Step 2: Convert to fraction form
    28,135.33/38,831.95 = 18,076.35/x
  3. Step 3: Cross multiply
    28,135.33x = 38,831.95 × 18,076.35
  4. Step 4: Simplify right side
    28,135.33x = 701,939,919.38
  5. Step 5: Solve for x
    x = 701,939,919.38/28,135.33
  6. Step 6: Final answer
    x = 24,948.70

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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.