Home / 47,153.21-65,043.81-30,386.21

Finding the Fourth Proportional to 47,153.21, 65,043.81 and 30,386.21

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Solution

The fourth proportional to 47,153.21, 65,043.81 and 30,386.21 is: 41,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,153.21 : 65,043.81 = 30,386.21 : x
  2. Step 2: Convert to fraction form
    47,153.21/65,043.81 = 30,386.21/x
  3. Step 3: Cross multiply
    47,153.21x = 65,043.81 × 30,386.21
  4. Step 4: Simplify right side
    47,153.21x = 1,976,434,544.64
  5. Step 5: Solve for x
    x = 1,976,434,544.64/47,153.21
  6. Step 6: Final answer
    x = 41,915.17

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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.