Home / 19,320.57-28,985.31-6,172.92

Finding the Fourth Proportional to 19,320.57, 28,985.31 and 6,172.92

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Solution

The fourth proportional to 19,320.57, 28,985.31 and 6,172.92 is: 9,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.57 : 28,985.31 = 6,172.92 : x
  2. Step 2: Convert to fraction form
    19,320.57/28,985.31 = 6,172.92/x
  3. Step 3: Cross multiply
    19,320.57x = 28,985.31 × 6,172.92
  4. Step 4: Simplify right side
    19,320.57x = 178,923,999.81
  5. Step 5: Solve for x
    x = 178,923,999.81/19,320.57
  6. Step 6: Final answer
    x = 9,260.80

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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.