Home / 19,420.25-29,127.21-6,938.15

Finding the Fourth Proportional to 19,420.25, 29,127.21 and 6,938.15

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Solution

The fourth proportional to 19,420.25, 29,127.21 and 6,938.15 is: 10,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.25 : 29,127.21 = 6,938.15 : x
  2. Step 2: Convert to fraction form
    19,420.25/29,127.21 = 6,938.15/x
  3. Step 3: Cross multiply
    19,420.25x = 29,127.21 × 6,938.15
  4. Step 4: Simplify right side
    19,420.25x = 202,088,806.43
  5. Step 5: Solve for x
    x = 202,088,806.43/19,420.25
  6. Step 6: Final answer
    x = 10,406.09

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1.5x scale

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.