Home / 23,009.86-31,753.45-12,938.32

Finding the Fourth Proportional to 23,009.86, 31,753.45 and 12,938.32

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Solution

The fourth proportional to 23,009.86, 31,753.45 and 12,938.32 is: 17,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,009.86 : 31,753.45 = 12,938.32 : x
  2. Step 2: Convert to fraction form
    23,009.86/31,753.45 = 12,938.32/x
  3. Step 3: Cross multiply
    23,009.86x = 31,753.45 × 12,938.32
  4. Step 4: Simplify right side
    23,009.86x = 410,836,297.20
  5. Step 5: Solve for x
    x = 410,836,297.20/23,009.86
  6. Step 6: Final answer
    x = 17,854.79

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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.