Home / 19,440.54-29,159.87-5,400.47

Finding the Fourth Proportional to 19,440.54, 29,159.87 and 5,400.47

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Solution

The fourth proportional to 19,440.54, 29,159.87 and 5,400.47 is: 8,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.54 : 29,159.87 = 5,400.47 : x
  2. Step 2: Convert to fraction form
    19,440.54/29,159.87 = 5,400.47/x
  3. Step 3: Cross multiply
    19,440.54x = 29,159.87 × 5,400.47
  4. Step 4: Simplify right side
    19,440.54x = 157,477,049.04
  5. Step 5: Solve for x
    x = 157,477,049.04/19,440.54
  6. Step 6: Final answer
    x = 8,100.45

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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.