Home / 40,730.90-61,016.80-19,353.19

Finding the Fourth Proportional to 40,730.90, 61,016.80 and 19,353.19

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Solution

The fourth proportional to 40,730.90, 61,016.80 and 19,353.19 is: 28,991.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,730.90 : 61,016.80 = 19,353.19 : x
  2. Step 2: Convert to fraction form
    40,730.90/61,016.80 = 19,353.19/x
  3. Step 3: Cross multiply
    40,730.90x = 61,016.80 × 19,353.19
  4. Step 4: Simplify right side
    40,730.90x = 1,180,869,556.18
  5. Step 5: Solve for x
    x = 1,180,869,556.18/40,730.90
  6. Step 6: Final answer
    x = 28,991.99

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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.