Home / 23,057.08-31,818.90-13,121.08

Finding the Fourth Proportional to 23,057.08, 31,818.90 and 13,121.08

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Solution

The fourth proportional to 23,057.08, 31,818.90 and 13,121.08 is: 18,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,057.08 : 31,818.90 = 13,121.08 : x
  2. Step 2: Convert to fraction form
    23,057.08/31,818.90 = 13,121.08/x
  3. Step 3: Cross multiply
    23,057.08x = 31,818.90 × 13,121.08
  4. Step 4: Simplify right side
    23,057.08x = 417,498,332.41
  5. Step 5: Solve for x
    x = 417,498,332.41/23,057.08
  6. Step 6: Final answer
    x = 18,107.16

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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.