Home / 19,657.44-29,420.16-13,391.52

Finding the Fourth Proportional to 19,657.44, 29,420.16 and 13,391.52

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Solution

The fourth proportional to 19,657.44, 29,420.16 and 13,391.52 is: 20,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.44 : 29,420.16 = 13,391.52 : x
  2. Step 2: Convert to fraction form
    19,657.44/29,420.16 = 13,391.52/x
  3. Step 3: Cross multiply
    19,657.44x = 29,420.16 × 13,391.52
  4. Step 4: Simplify right side
    19,657.44x = 393,980,661.04
  5. Step 5: Solve for x
    x = 393,980,661.04/19,657.44
  6. Step 6: Final answer
    x = 20,042.32

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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.