Home / 19,964.70-29,765.99-19,445.29

Finding the Fourth Proportional to 19,964.70, 29,765.99 and 19,445.29

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Solution

The fourth proportional to 19,964.70, 29,765.99 and 19,445.29 is: 28,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.70 : 29,765.99 = 19,445.29 : x
  2. Step 2: Convert to fraction form
    19,964.70/29,765.99 = 19,445.29/x
  3. Step 3: Cross multiply
    19,964.70x = 29,765.99 × 19,445.29
  4. Step 4: Simplify right side
    19,964.70x = 578,808,281.89
  5. Step 5: Solve for x
    x = 578,808,281.89/19,964.70
  6. Step 6: Final answer
    x = 28,991.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.