Home / 19,563.40-29,301.90-7,870.60

Finding the Fourth Proportional to 19,563.40, 29,301.90 and 7,870.60

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Solution

The fourth proportional to 19,563.40, 29,301.90 and 7,870.60 is: 11,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.40 : 29,301.90 = 7,870.60 : x
  2. Step 2: Convert to fraction form
    19,563.40/29,301.90 = 7,870.60/x
  3. Step 3: Cross multiply
    19,563.40x = 29,301.90 × 7,870.60
  4. Step 4: Simplify right side
    19,563.40x = 230,623,534.14
  5. Step 5: Solve for x
    x = 230,623,534.14/19,563.40
  6. Step 6: Final answer
    x = 11,788.52

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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.