Home / 31,253.76-43,128.12-17,825.64

Finding the Fourth Proportional to 31,253.76, 43,128.12 and 17,825.64

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Solution

The fourth proportional to 31,253.76, 43,128.12 and 17,825.64 is: 24,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.76 : 43,128.12 = 17,825.64 : x
  2. Step 2: Convert to fraction form
    31,253.76/43,128.12 = 17,825.64/x
  3. Step 3: Cross multiply
    31,253.76x = 43,128.12 × 17,825.64
  4. Step 4: Simplify right side
    31,253.76x = 768,786,341.00
  5. Step 5: Solve for x
    x = 768,786,341.00/31,253.76
  6. Step 6: Final answer
    x = 24,598.20

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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.