Home / 19,920.41-27,478.04-12,264.92

Finding the Fourth Proportional to 19,920.41, 27,478.04 and 12,264.92

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Solution

The fourth proportional to 19,920.41, 27,478.04 and 12,264.92 is: 16,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.41 : 27,478.04 = 12,264.92 : x
  2. Step 2: Convert to fraction form
    19,920.41/27,478.04 = 12,264.92/x
  3. Step 3: Cross multiply
    19,920.41x = 27,478.04 × 12,264.92
  4. Step 4: Simplify right side
    19,920.41x = 337,015,763.64
  5. Step 5: Solve for x
    x = 337,015,763.64/19,920.41
  6. Step 6: Final answer
    x = 16,918.12

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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.