Home / 23,138.04-31,929.32-13,065.68

Finding the Fourth Proportional to 23,138.04, 31,929.32 and 13,065.68

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Solution

The fourth proportional to 23,138.04, 31,929.32 and 13,065.68 is: 18,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.04 : 31,929.32 = 13,065.68 : x
  2. Step 2: Convert to fraction form
    23,138.04/31,929.32 = 13,065.68/x
  3. Step 3: Cross multiply
    23,138.04x = 31,929.32 × 13,065.68
  4. Step 4: Simplify right side
    23,138.04x = 417,178,277.74
  5. Step 5: Solve for x
    x = 417,178,277.74/23,138.04
  6. Step 6: Final answer
    x = 18,029.97

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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.