Home / 28,831.36-39,787.86-16,253.68

Finding the Fourth Proportional to 28,831.36, 39,787.86 and 16,253.68

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Solution

The fourth proportional to 28,831.36, 39,787.86 and 16,253.68 is: 22,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.36 : 39,787.86 = 16,253.68 : x
  2. Step 2: Convert to fraction form
    28,831.36/39,787.86 = 16,253.68/x
  3. Step 3: Cross multiply
    28,831.36x = 39,787.86 × 16,253.68
  4. Step 4: Simplify right side
    28,831.36x = 646,699,144.32
  5. Step 5: Solve for x
    x = 646,699,144.32/28,831.36
  6. Step 6: Final answer
    x = 22,430.41

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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.