Home / 19,420.89-29,127.12-6,941.78

Finding the Fourth Proportional to 19,420.89, 29,127.12 and 6,941.78

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Solution

The fourth proportional to 19,420.89, 29,127.12 and 6,941.78 is: 10,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.89 : 29,127.12 = 6,941.78 : x
  2. Step 2: Convert to fraction form
    19,420.89/29,127.12 = 6,941.78/x
  3. Step 3: Cross multiply
    19,420.89x = 29,127.12 × 6,941.78
  4. Step 4: Simplify right side
    19,420.89x = 202,193,934.24
  5. Step 5: Solve for x
    x = 202,193,934.24/19,420.89
  6. Step 6: Final answer
    x = 10,411.16

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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.