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Finding the Fourth Proportional to 29,785.60, 44,678.40 and 18,510.40

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Solution

The fourth proportional to 29,785.60, 44,678.40 and 18,510.40 is: 27,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,785.60 : 44,678.40 = 18,510.40 : x
  2. Step 2: Convert to fraction form
    29,785.60/44,678.40 = 18,510.40/x
  3. Step 3: Cross multiply
    29,785.60x = 44,678.40 × 18,510.40
  4. Step 4: Simplify right side
    29,785.60x = 827,015,055.36
  5. Step 5: Solve for x
    x = 827,015,055.36/29,785.60
  6. Step 6: Final answer
    x = 27,765.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.