Home / 19,678.47-29,517.41-4,887.53

Finding the Fourth Proportional to 19,678.47, 29,517.41 and 4,887.53

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Solution

The fourth proportional to 19,678.47, 29,517.41 and 4,887.53 is: 7,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.47 : 29,517.41 = 4,887.53 : x
  2. Step 2: Convert to fraction form
    19,678.47/29,517.41 = 4,887.53/x
  3. Step 3: Cross multiply
    19,678.47x = 29,517.41 × 4,887.53
  4. Step 4: Simplify right side
    19,678.47x = 144,267,054.87
  5. Step 5: Solve for x
    x = 144,267,054.87/19,678.47
  6. Step 6: Final answer
    x = 7,331.21

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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.