Home / 19,975.57-27,569.64-12,018.54

Finding the Fourth Proportional to 19,975.57, 27,569.64 and 12,018.54

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Solution

The fourth proportional to 19,975.57, 27,569.64 and 12,018.54 is: 16,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.57 : 27,569.64 = 12,018.54 : x
  2. Step 2: Convert to fraction form
    19,975.57/27,569.64 = 12,018.54/x
  3. Step 3: Cross multiply
    19,975.57x = 27,569.64 × 12,018.54
  4. Step 4: Simplify right side
    19,975.57x = 331,346,821.13
  5. Step 5: Solve for x
    x = 331,346,821.13/19,975.57
  6. Step 6: Final answer
    x = 16,587.60

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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.