Home / 19,217.21-26,509.67-15,636.17

Finding the Fourth Proportional to 19,217.21, 26,509.67 and 15,636.17

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Solution

The fourth proportional to 19,217.21, 26,509.67 and 15,636.17 is: 21,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.21 : 26,509.67 = 15,636.17 : x
  2. Step 2: Convert to fraction form
    19,217.21/26,509.67 = 15,636.17/x
  3. Step 3: Cross multiply
    19,217.21x = 26,509.67 × 15,636.17
  4. Step 4: Simplify right side
    19,217.21x = 414,509,694.86
  5. Step 5: Solve for x
    x = 414,509,694.86/19,217.21
  6. Step 6: Final answer
    x = 21,569.71

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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.