Home / 20,501.98-30,762.54-8,018.77

Finding the Fourth Proportional to 20,501.98, 30,762.54 and 8,018.77

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Solution

The fourth proportional to 20,501.98, 30,762.54 and 8,018.77 is: 12,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.98 : 30,762.54 = 8,018.77 : x
  2. Step 2: Convert to fraction form
    20,501.98/30,762.54 = 8,018.77/x
  3. Step 3: Cross multiply
    20,501.98x = 30,762.54 × 8,018.77
  4. Step 4: Simplify right side
    20,501.98x = 246,677,732.88
  5. Step 5: Solve for x
    x = 246,677,732.88/20,501.98
  6. Step 6: Final answer
    x = 12,031.90

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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.