Home / 20,526.99-28,327.62-12,031.53

Finding the Fourth Proportional to 20,526.99, 28,327.62 and 12,031.53

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Solution

The fourth proportional to 20,526.99, 28,327.62 and 12,031.53 is: 16,603.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.99 : 28,327.62 = 12,031.53 : x
  2. Step 2: Convert to fraction form
    20,526.99/28,327.62 = 12,031.53/x
  3. Step 3: Cross multiply
    20,526.99x = 28,327.62 × 12,031.53
  4. Step 4: Simplify right side
    20,526.99x = 340,824,609.86
  5. Step 5: Solve for x
    x = 340,824,609.86/20,526.99
  6. Step 6: Final answer
    x = 16,603.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.