Home / 19,966.40-29,973.90-10,100.60

Finding the Fourth Proportional to 19,966.40, 29,973.90 and 10,100.60

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Solution

The fourth proportional to 19,966.40, 29,973.90 and 10,100.60 is: 15,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.40 : 29,973.90 = 10,100.60 : x
  2. Step 2: Convert to fraction form
    19,966.40/29,973.90 = 10,100.60/x
  3. Step 3: Cross multiply
    19,966.40x = 29,973.90 × 10,100.60
  4. Step 4: Simplify right side
    19,966.40x = 302,754,374.34
  5. Step 5: Solve for x
    x = 302,754,374.34/19,966.40
  6. Step 6: Final answer
    x = 15,163.19

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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.