Home / 31,979.64-44,132.19-17,640.02

Finding the Fourth Proportional to 31,979.64, 44,132.19 and 17,640.02

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Solution

The fourth proportional to 31,979.64, 44,132.19 and 17,640.02 is: 24,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.64 : 44,132.19 = 17,640.02 : x
  2. Step 2: Convert to fraction form
    31,979.64/44,132.19 = 17,640.02/x
  3. Step 3: Cross multiply
    31,979.64x = 44,132.19 × 17,640.02
  4. Step 4: Simplify right side
    31,979.64x = 778,492,824.57
  5. Step 5: Solve for x
    x = 778,492,824.57/31,979.64
  6. Step 6: Final answer
    x = 24,343.39

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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.