Home / 47,422.76-65,414.48-30,421.28

Finding the Fourth Proportional to 47,422.76, 65,414.48 and 30,421.28

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Solution

The fourth proportional to 47,422.76, 65,414.48 and 30,421.28 is: 41,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,422.76 : 65,414.48 = 30,421.28 : x
  2. Step 2: Convert to fraction form
    47,422.76/65,414.48 = 30,421.28/x
  3. Step 3: Cross multiply
    47,422.76x = 65,414.48 × 30,421.28
  4. Step 4: Simplify right side
    47,422.76x = 1,989,992,212.13
  5. Step 5: Solve for x
    x = 1,989,992,212.13/47,422.76
  6. Step 6: Final answer
    x = 41,962.81

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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.