Home / 19,771.38-29,457.41-18,830.97

Finding the Fourth Proportional to 19,771.38, 29,457.41 and 18,830.97

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Solution

The fourth proportional to 19,771.38, 29,457.41 and 18,830.97 is: 28,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.38 : 29,457.41 = 18,830.97 : x
  2. Step 2: Convert to fraction form
    19,771.38/29,457.41 = 18,830.97/x
  3. Step 3: Cross multiply
    19,771.38x = 29,457.41 × 18,830.97
  4. Step 4: Simplify right side
    19,771.38x = 554,711,509.83
  5. Step 5: Solve for x
    x = 554,711,509.83/19,771.38
  6. Step 6: Final answer
    x = 28,056.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.