Home / 33,430.08-50,138.62-12,655.20

Finding the Fourth Proportional to 33,430.08, 50,138.62 and 12,655.20

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Solution

The fourth proportional to 33,430.08, 50,138.62 and 12,655.20 is: 18,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,430.08 : 50,138.62 = 12,655.20 : x
  2. Step 2: Convert to fraction form
    33,430.08/50,138.62 = 12,655.20/x
  3. Step 3: Cross multiply
    33,430.08x = 50,138.62 × 12,655.20
  4. Step 4: Simplify right side
    33,430.08x = 634,514,263.82
  5. Step 5: Solve for x
    x = 634,514,263.82/33,430.08
  6. Step 6: Final answer
    x = 18,980.34

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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.