Home / 47,429.20-65,475.14-30,458.76

Finding the Fourth Proportional to 47,429.20, 65,475.14 and 30,458.76

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Solution

The fourth proportional to 47,429.20, 65,475.14 and 30,458.76 is: 42,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,429.20 : 65,475.14 = 30,458.76 : x
  2. Step 2: Convert to fraction form
    47,429.20/65,475.14 = 30,458.76/x
  3. Step 3: Cross multiply
    47,429.20x = 65,475.14 × 30,458.76
  4. Step 4: Simplify right side
    47,429.20x = 1,994,291,361.55
  5. Step 5: Solve for x
    x = 1,994,291,361.55/47,429.20
  6. Step 6: Final answer
    x = 42,047.76

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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.