Home / 19,581.57-27,012.56-12,500.55

Finding the Fourth Proportional to 19,581.57, 27,012.56 and 12,500.55

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Solution

The fourth proportional to 19,581.57, 27,012.56 and 12,500.55 is: 17,244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.57 : 27,012.56 = 12,500.55 : x
  2. Step 2: Convert to fraction form
    19,581.57/27,012.56 = 12,500.55/x
  3. Step 3: Cross multiply
    19,581.57x = 27,012.56 × 12,500.55
  4. Step 4: Simplify right side
    19,581.57x = 337,671,794.41
  5. Step 5: Solve for x
    x = 337,671,794.41/19,581.57
  6. Step 6: Final answer
    x = 17,244.37

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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.