Home / 19,376.40-29,080.80-8,862.60

Finding the Fourth Proportional to 19,376.40, 29,080.80 and 8,862.60

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Solution

The fourth proportional to 19,376.40, 29,080.80 and 8,862.60 is: 13,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.40 : 29,080.80 = 8,862.60 : x
  2. Step 2: Convert to fraction form
    19,376.40/29,080.80 = 8,862.60/x
  3. Step 3: Cross multiply
    19,376.40x = 29,080.80 × 8,862.60
  4. Step 4: Simplify right side
    19,376.40x = 257,731,498.08
  5. Step 5: Solve for x
    x = 257,731,498.08/19,376.40
  6. Step 6: Final answer
    x = 13,301.31

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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.