Home / 19,977.46-29,957.40-10,615.28

Finding the Fourth Proportional to 19,977.46, 29,957.40 and 10,615.28

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Solution

The fourth proportional to 19,977.46, 29,957.40 and 10,615.28 is: 15,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.46 : 29,957.40 = 10,615.28 : x
  2. Step 2: Convert to fraction form
    19,977.46/29,957.40 = 10,615.28/x
  3. Step 3: Cross multiply
    19,977.46x = 29,957.40 × 10,615.28
  4. Step 4: Simplify right side
    19,977.46x = 318,006,039.29
  5. Step 5: Solve for x
    x = 318,006,039.29/19,977.46
  6. Step 6: Final answer
    x = 15,918.24

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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.