Home / 19,694.40-29,541.60-4,903.20

Finding the Fourth Proportional to 19,694.40, 29,541.60 and 4,903.20

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Solution

The fourth proportional to 19,694.40, 29,541.60 and 4,903.20 is: 7,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.40 : 29,541.60 = 4,903.20 : x
  2. Step 2: Convert to fraction form
    19,694.40/29,541.60 = 4,903.20/x
  3. Step 3: Cross multiply
    19,694.40x = 29,541.60 × 4,903.20
  4. Step 4: Simplify right side
    19,694.40x = 144,848,373.12
  5. Step 5: Solve for x
    x = 144,848,373.12/19,694.40
  6. Step 6: Final answer
    x = 7,354.80

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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.