Home / 17,721.87-24,435.90-13,238.07

Finding the Fourth Proportional to 17,721.87, 24,435.90 and 13,238.07

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Solution

The fourth proportional to 17,721.87, 24,435.90 and 13,238.07 is: 18,253.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.87 : 24,435.90 = 13,238.07 : x
  2. Step 2: Convert to fraction form
    17,721.87/24,435.90 = 13,238.07/x
  3. Step 3: Cross multiply
    17,721.87x = 24,435.90 × 13,238.07
  4. Step 4: Simplify right side
    17,721.87x = 323,484,154.71
  5. Step 5: Solve for x
    x = 323,484,154.71/17,721.87
  6. Step 6: Final answer
    x = 18,253.39

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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.