Home / 27,568.80-38,002.32-16,938.40

Finding the Fourth Proportional to 27,568.80, 38,002.32 and 16,938.40

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Solution

The fourth proportional to 27,568.80, 38,002.32 and 16,938.40 is: 23,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,568.80 : 38,002.32 = 16,938.40 : x
  2. Step 2: Convert to fraction form
    27,568.80/38,002.32 = 16,938.40/x
  3. Step 3: Cross multiply
    27,568.80x = 38,002.32 × 16,938.40
  4. Step 4: Simplify right side
    27,568.80x = 643,698,497.09
  5. Step 5: Solve for x
    x = 643,698,497.09/27,568.80
  6. Step 6: Final answer
    x = 23,348.80

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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.