Home / 19,259.28-28,889.94-5,409.36

Finding the Fourth Proportional to 19,259.28, 28,889.94 and 5,409.36

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Solution

The fourth proportional to 19,259.28, 28,889.94 and 5,409.36 is: 8,114.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,259.28 : 28,889.94 = 5,409.36 : x
  2. Step 2: Convert to fraction form
    19,259.28/28,889.94 = 5,409.36/x
  3. Step 3: Cross multiply
    19,259.28x = 28,889.94 × 5,409.36
  4. Step 4: Simplify right side
    19,259.28x = 156,276,085.84
  5. Step 5: Solve for x
    x = 156,276,085.84/19,259.28
  6. Step 6: Final answer
    x = 8,114.33

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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.