Home / 19,200.80-28,749.36-12,254.24

Finding the Fourth Proportional to 19,200.80, 28,749.36 and 12,254.24

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Solution

The fourth proportional to 19,200.80, 28,749.36 and 12,254.24 is: 18,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.80 : 28,749.36 = 12,254.24 : x
  2. Step 2: Convert to fraction form
    19,200.80/28,749.36 = 12,254.24/x
  3. Step 3: Cross multiply
    19,200.80x = 28,749.36 × 12,254.24
  4. Step 4: Simplify right side
    19,200.80x = 352,301,557.29
  5. Step 5: Solve for x
    x = 352,301,557.29/19,200.80
  6. Step 6: Final answer
    x = 18,348.27

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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.