Home / 19,420.20-29,056.19-10,661.27

Finding the Fourth Proportional to 19,420.20, 29,056.19 and 10,661.27

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Solution

The fourth proportional to 19,420.20, 29,056.19 and 10,661.27 is: 15,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.20 : 29,056.19 = 10,661.27 : x
  2. Step 2: Convert to fraction form
    19,420.20/29,056.19 = 10,661.27/x
  3. Step 3: Cross multiply
    19,420.20x = 29,056.19 × 10,661.27
  4. Step 4: Simplify right side
    19,420.20x = 309,775,688.17
  5. Step 5: Solve for x
    x = 309,775,688.17/19,420.20
  6. Step 6: Final answer
    x = 15,951.21

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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.