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Finding the Fourth Proportional to 34,323.40, 47,373.78 and 20,184.40

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Solution

The fourth proportional to 34,323.40, 47,373.78 and 20,184.40 is: 27,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,323.40 : 47,373.78 = 20,184.40 : x
  2. Step 2: Convert to fraction form
    34,323.40/47,373.78 = 20,184.40/x
  3. Step 3: Cross multiply
    34,323.40x = 47,373.78 × 20,184.40
  4. Step 4: Simplify right side
    34,323.40x = 956,211,325.03
  5. Step 5: Solve for x
    x = 956,211,325.03/34,323.40
  6. Step 6: Final answer
    x = 27,858.88

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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.